{"id":146,"date":"2020-09-16T09:52:15","date_gmt":"2020-09-16T04:52:15","guid":{"rendered":"https:\/\/talib.pk\/test-preparation\/?p=146"},"modified":"2020-09-16T09:52:15","modified_gmt":"2020-09-16T04:52:15","slug":"chemistry-1st-year-states-of-matter-mcqs-with-answers","status":"publish","type":"post","link":"https:\/\/talib.pk\/test-preparation\/chemistry-1st-year-states-of-matter-mcqs-with-answers\/","title":{"rendered":"Chemistry 1st Year States of Matter MCQs with Answers"},"content":{"rendered":"<div class=\"28d95f43054b69d67289d6316e9506d8\" data-index=\"1\" style=\"float: none; margin:12px 0 12px 0; text-align:center;\">\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- talib-new -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3438155045791616\"\r\n     data-ad-slot=\"6774242552\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>There are 4 stats of Matter and we are studying the Chemistry 1st Year States of Matter MCQs with Answers here. In the gaseous state, the molecules are separated from each other by large empty spaces between them. There are several properties of all the matters. Gas laws explain different behaviors of gases. By combining these gas laws, we get the General Gas Equation that is PV=nRT. This equation is studied in Dalton\u2019s law and it has several applications. Kinetic Molecular Theory of Gases explains the different properties of Gases. After this, we will study Liquids. The effects including Evaporation, Vapor Pressure, and Boiling are important here. There are different structures of Ice. In the end, the most important topic in Solids. There are different lattice structures of Solids studied here. So, this is the brief intro about 1st Year Chemistry Stats of Matter MCQs with Answers. Have a look at some important MCQs from this chapter.<\/p>\n<h2 style=\"text-align: center;\">Chemistry 1st Year States of Matter MCQs with Answers<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-407 aligncenter\" src=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/Chemistry-7.jpg\" alt=\"Chemistry 1st Year States of Matter MCQs with Answers\" width=\"300\" height=\"300\" srcset=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/Chemistry-7.jpg 300w, https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/Chemistry-7-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3><strong>KEY POINTS<\/strong><\/h3>\n<div class=\"box info  alignleft\" style=\"width:100%\"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\t\n<div class=\"lightbulb tie-list-shortcode\">\n<ul>\n<li>Properties of Solid, Liquid, and Gas<\/li>\n<li>Boyle&#8217;s and Charles&#8217;s Law<\/li>\n<li>General Gas Equation<\/li>\n<li>Avogadro&#8217;s Law<\/li>\n<li>Dalton&#8217;s law of Partial Pressure\/Applications<\/li>\n<li>Diffusion and Effusion<\/li>\n<li>Kinetic Molecular Theory of Gases<\/li>\n<li>Evaporation<\/li>\n<li>Boiling<\/li>\n<li>Structure of Crystalline Solid<\/li>\n<\/ul>\n<\/div>\n\t\t\t<\/div><\/div>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #ff6600;\">Question#1<\/span>. The number of molecules in 0.0112m<sup>3<\/sup> of methane at 25\u00b0C and pressure of 760mm Hg is:<\/strong><\/p>\n<ul>\n<li>6.02 x 10<sup>20<\/sup><\/li>\n<li>3.01 x 10<sup>12<\/sup><\/li>\n<li>6.02 x 10<sup>23<\/sup><\/li>\n<li>3.01 x 10<sup>23<\/sup><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>3.01 x 10<sup>23<\/sup><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#2<\/span>. Which of the following will have the same number of molecules at STP:<\/strong><\/p>\n<ul>\n<li>280 cm<sup>3<\/sup> of CO<sub>2<\/sub> and 280 cm<sup>3<\/sup> of N<sub>2<\/sub>O<\/li>\n<li>44g of CO<sub>2<\/sub> and 11.2 dm<sup>3<\/sup> CO<\/li>\n<li>11.2 dm<sup>3<\/sup> of O<sub>2<\/sub> and 32g of O<sub>2<\/sub><\/li>\n<li>28g of N<sub>2<\/sub> and 5.6 dm<sup>3<\/sup> of oxygen<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>280 cm<sup>3<\/sup> of CO<sub>2<\/sub> and 280 cm<sup>3<\/sup> of N<sub>2<\/sub>O<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#3<\/span>. The partial pressure of oxygen in the lungs is:<\/strong><\/p>\n<ul>\n<li>159 torr<\/li>\n<li>116 torr<\/li>\n<li>760 torr<\/li>\n<li>50 torr<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>159 torr<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#4<\/span>. Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality:<\/strong><\/p>\n<ul>\n<li>At high pressure, the gas molecules move in one direction only<\/li>\n<li>At high pressure, the collision between the gas molecules are increased manifold<\/li>\n<li>At high pressure, the volume of the gas becomes insignificant<\/li>\n<li>At high pressure, the intermolecular attractions become significant<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>At high pressure, the intermolecular attractions become significant<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#5<\/span>. Evaporation is designated as a cooling process because of the reason:<\/strong><\/p>\n<ul>\n<li>It is a surface phenomenon<\/li>\n<li>It involves heat absorption<\/li>\n<li>High energy molecules leave behind the low energy molecules and cause cooling<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>High energy molecules leave behind the low energy molecules and cause cooling<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#6<\/span>. Evaporating water depends upon the following:<\/strong><\/p>\n<ul>\n<li>Surface area and intermolecular forces<\/li>\n<li>Speed of the air above the liquid surface<\/li>\n<li>Humidity in air<\/li>\n<li>All of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of these<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#7<\/span>. The vapor pressure of a liquid depends upon the following:<\/strong><\/p>\n<ul>\n<li>Surface area and temperature only<\/li>\n<li>The volume of the liquid<\/li>\n<li>The humidity of the liquid in the air<\/li>\n<li>Temperature and the intermolecular forces<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Temperature and the intermolecular forces<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#8<\/span>. At 1atm pressure, a liquid 1 has the boiling point less than a liquid 2, what can we predict about both the liquids:<\/strong><\/p>\n<ul>\n<li>Liquid 1 has high vapor pressure than the liquid 2<\/li>\n<li>Liquid 1 has the weak intermolecular forces of attraction than the liquid 2<\/li>\n<li>Liquid 1 is more volatile than the liquid 2<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of the above<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#9<\/span>. The strength of hydrogen bonding is:<\/strong><\/p>\n<ul>\n<li>20 times less than a covalent bond<\/li>\n<li>20 times more than a covalent bond<\/li>\n<li>20 times less than an ionic bond<\/li>\n<li>20 times more than an ionic bond<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>20 times less than a covalent bond<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#10<\/span>. 110\u00b0C boiling water of water corresponds to the external pressure:<\/strong><\/p>\n<ul>\n<li>Between 760 to 1200 torr<\/li>\n<li>765 torr<\/li>\n<li>Between 200 to 760 torr<\/li>\n<li>Any value of pressure<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Between 760 to 1200 torr<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#11<\/span>. Lower alcohols in spite of being organic are soluble in water because:<\/strong><\/p>\n<ul>\n<li>Intermolecular hydrogen bonding<\/li>\n<li>Dipole induced dipoles<\/li>\n<li>The low electronegativity difference between C and H<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Intermolecular hydrogen bonding<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#12<\/span>. Ammonia shows the maximum boiling point among the hydrides of the 5<sup>th<\/sup> group because:<\/strong><\/p>\n<ul>\n<li>Lone pair of electrons present on the nitrogen<\/li>\n<li>The very small size of nitrogen<\/li>\n<li>The pyramidal structure of ammonia<\/li>\n<li>The enhanced electro-negativity character of nitrogen<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Enhanced electro-negativity character of nitrogen<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#13<\/span>. Ice float on the liquid water because:<\/strong><\/p>\n<ul>\n<li>The density of water is maximum at 4\u00b0C<\/li>\n<li>Water freezes at 0\u00b0C and is less dense than liquid water<\/li>\n<li>Ice occupies less volume than water at 0\u00b0C<\/li>\n<li>Both b and c<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Water freezes at 0\u00b0C and is less dense than liquid water<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#14<\/span>. Type of hybridization in diamond:<\/strong><\/p>\n<ul>\n<li>sp<\/li>\n<li>sp<sup>2<\/sup><\/li>\n<li>sp<sup>3<br \/>\n<\/sup><\/li>\n<li>No hybridization<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>sp<sup>2<\/sup><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#15<\/span>. The overall structure of the diamond looks:<\/strong><\/p>\n<ul>\n<li>Face centered cubic<\/li>\n<li>Square planner<\/li>\n<li>Tetragonal<\/li>\n<li>None of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Face centered cubic<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#16<\/span>. The graph between pressure and the inverse of volume at constant temperature and number of moles:<\/strong><\/p>\n<ul>\n<li>Straight-line parallel to the x-axis<\/li>\n<li>Straight-line parallel to the y-axis<\/li>\n<li>Straight-line passing through the origin<\/li>\n<li>None of them<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Straight line passing through the origin<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#17<\/span>. If both temperature and volume of a gas are doubled, the pressure:<\/strong><\/p>\n<ul>\n<li>Cannot be predicated<\/li>\n<li>Remain unchanged<\/li>\n<li>Is reduce to \u00bd<\/li>\n<li>Is doubled<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Is reduce to \u00bd<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#18<\/span>. In a closed vessel of 1000 cm<sup>3<\/sup>, H<sub>2<\/sub> gas is heated from 27\u00b0C to 127\u00b0C. Which statement is not correct?<\/strong><\/p>\n<ul>\n<li>The rate of collision increases<\/li>\n<li>The pressure of gas increases<\/li>\n<li>The energy of gas molecules increases<\/li>\n<li>The number of moles of gas increases<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>The number of moles of gas increases<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#19<\/span>. Which one is the form of a general gas equation?<\/strong><\/p>\n<ul>\n<li>PV = nRT<\/li>\n<li>P<sub>1<\/sub>V<sub>1<\/sub>\/T<sub>1<\/sub> = P<sub>2<\/sub>V<sub>2<\/sub>\/T<sub>2<\/sub><\/li>\n<li>PV = RT<\/li>\n<li>All of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of these<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#20<\/span>. The sudden expansion of the gas from high pressure towards the low-pressure causes?<\/strong><\/p>\n<ul>\n<li>Increase of temperature<\/li>\n<li>Decrease in temperature<\/li>\n<li>Greater number of confusions among the molecules<\/li>\n<li>Decrease of velocities of gas molecules<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Decrease of temperature<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#21<\/span>. The molecules of gas show more deviation from ideal behavior at low temperature, because;<\/strong><\/p>\n<ul>\n<li>Kinetic energies<\/li>\n<li>Densities of the gases increase<\/li>\n<li>Collision become less frequent<\/li>\n<li>Attractive force dominate at low temperature<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Attractive force dominate at low temperature<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#22<\/span>. Hydrogen bonding is extensively present in protein which forms the spiral. The hydrogen bond being produced is between.<\/strong><\/p>\n<ul>\n<li>Nitrogen and the hydrogen atom<\/li>\n<li>Carbon and the hydrogen atom<\/li>\n<li>Oxygen and the hydrogen atom<\/li>\n<li>All of these possible<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Oxygen and hydrogen atom<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#23<\/span>. Ice occupies more space than liquid water:<\/strong><\/p>\n<ul>\n<li>10%<\/li>\n<li>11%<\/li>\n<li>12%<\/li>\n<li>9%<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>9%<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#24<\/span>. The boiling point of H<sub>2<\/sub>O is 100\u00b0C while that of C<sub>2<\/sub>H<sub>5<\/sub>OH is 78.5\u00b0C. The reason is that:<\/strong><\/p>\n<ul>\n<li>H<sub>2<\/sub>O molecules are small-sized<\/li>\n<li>The bond angles at the oxygen atom are different<\/li>\n<li>C<sub>2<\/sub>H<sub>5<\/sub> group is electron-donating<\/li>\n<li>The number of hydrogen bonds per H<sub>2<\/sub>O molecule is greater than C<sub>2<\/sub>H<sub>5<\/sub>-OH<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>The number of hydrogen bonds per H<sub>2<\/sub>O molecule is greater than C<sub>2<\/sub>H<sub>5<\/sub>-OH<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#25<\/span>. The distillation of a solution under reduced pressure is called?<\/strong><\/p>\n<ul>\n<li>Fractional distillation<\/li>\n<li>Destructive distillation<\/li>\n<li>Distillation<\/li>\n<li>Vacuum distillation<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Vacuum distillation<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#26<\/span>. Which of the liquid has the lowest vapor pressure?<\/strong><\/p>\n<ul>\n<li>Br<sub>2<\/sub><\/li>\n<li>H<sub>2<\/sub>O<strong><br \/>\n<\/strong><\/li>\n<li>Ether<\/li>\n<li>C<sub>2<\/sub>H<sub>5<\/sub> \u2013 OH<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>H<sub>2<\/sub>O<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#27<\/span>. The boiling point of a compound is mostly raised by:<\/strong><\/p>\n<ul>\n<li>Dipole induced dipole interaction<\/li>\n<li>London dispersion forces<\/li>\n<li>Intermolecular hydrogen bonding<\/li>\n<li>Intramolecular Hydrogen bonding<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Intermolecular hydrogen bonding<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#28<\/span>. The number of CI ions per unit cell of NaCl are:<\/strong><\/p>\n<ul>\n<li>6<\/li>\n<li>4<strong><br \/>\n<\/strong><\/li>\n<li>2<\/li>\n<li>8<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>4<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#29<\/span>. The crystal of diamond is:<\/strong><\/p>\n<ul>\n<li>Ionic<\/li>\n<li>Molecular<\/li>\n<li>Covalent<\/li>\n<li>Metallic<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Covalent<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#30<\/span>. The crystals formed due to London forces of interaction are:<\/strong><\/p>\n<ul>\n<li>Ionic<\/li>\n<li>Covalent<\/li>\n<li>Molecular<\/li>\n<li>Metallic<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Molecular<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#31.\u00a0<\/span>Which one is false for evaporation:<\/strong><\/p>\n<ul>\n<li>Surface phenomenon<\/li>\n<li>Continous<\/li>\n<li>Exothermic<\/li>\n<li>Cause Cooling<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Exothermic<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#32.<\/span> The forces which are present between the ions and water molecules are known as:<\/strong><\/p>\n<ul>\n<li>Dipole induced dipole forces<\/li>\n<li>Ion dipole forces<\/li>\n<li>Dipole-Dipole forces<\/li>\n<li>London dispersion forces<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Ion dipole forces<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#33<\/span>. The conversion of vapours back into their liquid state is called______.<\/strong><\/p>\n<ul>\n<li>Crystallization<\/li>\n<li>Evaporation<\/li>\n<li>Vapourization<\/li>\n<li>Condensation<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Condensation<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#34<\/span>. The attractive forces between the partially positive end of one molecule and partial negative end of other molecules are called:<\/strong><\/p>\n<ul>\n<li>Dipole-Dipole forces<\/li>\n<li>Ion Dipole-Dipole forces<\/li>\n<li>London dispersion forces<\/li>\n<li>Debye forces<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Dipole-Dipole forces<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#35<\/span>. Which substance shows anisotropic behaviour in electrical conductivity?<\/strong><\/p>\n<ul>\n<li>Diamond<\/li>\n<li>Graphite<\/li>\n<li>KCl<\/li>\n<li>Ice<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Graphite<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#36<\/span>. Molar heat of vaporization of water is:<\/strong><\/p>\n<ul>\n<li>40.7 kJ\/mole<\/li>\n<li>40.7 J\/mole<\/li>\n<li>40.7 cal\/mole<\/li>\n<li>40.7 kcal\/mole<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>40.7 kJ\/mole<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#37<\/span>. Ice is _____ crystal.<\/strong><\/p>\n<ul>\n<li>Metallic<\/li>\n<li>Molecular<\/li>\n<li>Covalent<\/li>\n<li>Ionic<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Molecular<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#38<\/span>. The number of amino acid units for each turn of helix, on average are:<\/strong><\/p>\n<ul>\n<li>21<\/li>\n<li>23<\/li>\n<li>25<\/li>\n<li>27<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>27<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#39<\/span>. Which solids does not contain covalent bonds?<\/strong><\/p>\n<ul>\n<li>Copper<\/li>\n<li>Diamond<\/li>\n<li>Graphite<\/li>\n<li>Ice<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Copper<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#40<\/span>. Plastics are amorphous solids and:<\/strong><\/p>\n<ul>\n<li>Have sharp melting points<\/li>\n<li>Undergo clean cleavage when cut with knife<\/li>\n<li>Do not undergo clean cleavage<\/li>\n<li>Possess oderly arrangement over long distances<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Do not undergo clean cleavage<\/strong>\n\t\t\t<\/div><\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>There are 4 stats of Matter and we are studying the Chemistry 1st Year States of Matter MCQs with Answers here. In the gaseous state, the molecules are separated from each other by large empty spaces between them. There are several properties of all the matters. Gas laws explain different behaviors of gases. By combining &hellip;<\/p>\n","protected":false},"author":2,"featured_media":407,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/146"}],"collection":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/comments?post=146"}],"version-history":[{"count":0,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/146\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media\/407"}],"wp:attachment":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media?parent=146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/categories?post=146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/tags?post=146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}