{"id":181,"date":"2020-09-15T15:15:09","date_gmt":"2020-09-15T10:15:09","guid":{"rendered":"https:\/\/talib.pk\/test-preparation\/?p=181"},"modified":"2020-09-15T15:15:09","modified_gmt":"2020-09-15T10:15:09","slug":"2nd-year-chemistry-alcohols-phenols-and-ethers-mcqs","status":"publish","type":"post","link":"https:\/\/talib.pk\/test-preparation\/2nd-year-chemistry-alcohols-phenols-and-ethers-mcqs\/","title":{"rendered":"2nd Year Chemistry Alcohols, Phenols, and Ethers MCQs"},"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>You can get the 2nd Year Chemistry Alcohols, Phenols, and Ethers MCQs with answers here. The important MCQs of this chapter is given here. Alcohols, Phenols, and Ethers are classes of organic compounds. Each one has its own nomenclature, manufacture method, and reactivity. Alcohol is prepared in industries. They have two types of reactions including reactions in which C-O bond breaks and in which O-H bonds break. There are some distinctions in Primary, Secondary, and Tertiary Alcohols. Phenols are the aromatic compounds having OH group attached. They are prepared in different ways. Two types of reactions have done by Phenols i.e. due to OH-group and due to benzene ring. Ethers also have a distinct nomenclature. Ethers also have different preparation methods and reactivity. Now the complete info about this chapter is given here. Scroll down for it.<\/p>\n<h2 style=\"text-align: center;\">2nd Year Chemistry Alcohols, Phenols, and Ethers MCQs<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-364 aligncenter\" src=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/2nd-year-physics-mcqs-300x300-7.jpg\" alt=\"2nd Year Chemistry Alcohols, Phenols, and Ethers MCQs\" width=\"300\" height=\"300\" srcset=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/2nd-year-physics-mcqs-300x300-7.jpg 300w, https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2020\/09\/2nd-year-physics-mcqs-300x300-7-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3>KEY POINTS<\/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>Alcohols\/nomenclature<\/li>\n<li>Preparation of Alcohols<\/li>\n<li>Reactions of Alcohols<\/li>\n<li>Distinction b\/w Primary, Secondary and Tertiary Alcohols<\/li>\n<li>Phenols<\/li>\n<li>Preparation of phenol<\/li>\n<li>Reactions of Phenol<\/li>\n<li>Ethers\/nomenclature<\/li>\n<li>Preparation\/physical properties<\/li>\n<li>Chemical Reactivity of Ethers<\/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>: Alcohol produced from fermentation is not concentrated above 12 to 14% because:<\/strong><\/p>\n<ul>\n<li>Enzyme become inactive above this concentration<\/li>\n<li>Alcohol becomes denatured<\/li>\n<li>Alcohol is oxidized to vinegar<\/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>Enzyme become inactive above this concentration<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#2<\/span>: Which of the following can be used for alcohol denaturing?<\/strong><\/p>\n<ul>\n<li>Methanol<\/li>\n<li>Pyridine<\/li>\n<li>Acetone<\/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#3<\/span>: Primary alcohol denaturing:<\/strong><\/p>\n<ul>\n<li>Aldehydes<\/li>\n<li>Ketones<\/li>\n<li>Branched alkenes<\/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>Aldehydes<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#4<\/span>: 2-Propanol upon oxidation with acidified dichromate gives:<\/strong><\/p>\n<ul>\n<li>Acetaldehyde<\/li>\n<li>Acetone<\/li>\n<li>2-Methypropene<\/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>2-Methypropene<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#5<\/span>: Tertiary alcohols with acidified dichromate gives:<\/strong><\/p>\n<ul>\n<li>Aldehydes<\/li>\n<li>Ketones<\/li>\n<li>Alkenes<\/li>\n<li>Alkynes<\/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>Ketones<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#6<\/span>: When ethanol reacts with PCI<sub>5 <\/sub>then products formed are?<\/strong><\/p>\n<ul>\n<li>C<sub>2<\/sub> H<sub>5<\/sub> CI and\u00a0 H<sub>3<\/sub>PO<sub>3<\/sub><\/li>\n<li>C<sub>2<\/sub> H<sub>5<\/sub> CI, POCI<sub>3<\/sub> and HCI<\/li>\n<li>C<sub>2<\/sub> H<sub>5<\/sub> CI and HCI<\/li>\n<li>C<sub>2<\/sub> H<sub>5<\/sub> CI Only<\/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>C<sub>2<\/sub> H<sub>5<\/sub> CI, POCI<sub>3<\/sub> and HCI<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#7<\/span>: Which of the following reacts with aqueous alkaline iodine?<\/strong><\/p>\n<ul>\n<li>1-propanol<\/li>\n<li>Methanol<\/li>\n<li>Ethanol<\/li>\n<li>2-Methy1-2-propanol<\/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>Ethanol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#8<\/span>: When unknown primary alcohol gives yellow precipitates of iodoform it is most likely to be?<\/strong><\/p>\n<ul>\n<li>Methanol<\/li>\n<li>1-propanol<\/li>\n<li>Ethanol<\/li>\n<li>1-Butanol<\/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>Ethanol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#9<\/span>: Dehydration of alcohols with cone. H<sub>2<\/sub>SO<sub>4<\/sub> at 180<sup>0<\/sup> C gives:<\/strong><\/p>\n<ul>\n<li>Ethers<\/li>\n<li>Esters<\/li>\n<li>Alkenes<\/li>\n<li>alkyl halides<\/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>Esters<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#10<\/span>: Ethanol with conc. H<sub>2<\/sub>SO<sub>4<\/sub>at 140<sup>0<\/sup> C forms diethyl\u00a0 ether because:<\/strong><\/p>\n<ul>\n<li>It involves low temperature and high concentration of ethanol for ether preparation<\/li>\n<li>It gets dehydrated<\/li>\n<li>It gets dehydrogenated<\/li>\n<li>Both A and C are correct<\/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>It involves low temperature and high concentration of ethanol for ether preparation<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#11<\/span>: When alcohols react with Na metal, the alkoxide ion thus formed is strong?<\/strong><\/p>\n<ul>\n<li>Electrophile<\/li>\n<li>Acid<\/li>\n<li>Nucleophile<\/li>\n<li>None 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>Nucleophile<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#12<\/span>: An organic compound X is prepared by the oxidation of ethanol. This X reacts with ethanol to produce an ester what is X like to be?<\/strong><\/p>\n<ul>\n<li>Methanoic acid<\/li>\n<li>Propanoic acid<\/li>\n<li>Ethanoic acid<\/li>\n<li>Butanoic acid<\/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>Ethanoic acid<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#13<\/span>: Which of the following is used as a catalyst for esterification?<\/strong><\/p>\n<ul>\n<li>Dil.H<sub>2<\/sub> SO<sub>4<\/sub><\/li>\n<li>Dilute alkali<\/li>\n<li>Conc. H<sub>2 <\/sub>SO<sub>4<\/sub><\/li>\n<li>Cone.alkali<\/li>\n<li><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>Dil.H<sub>2<\/sub> SO<sub>4<\/sub><\/strong>\n\t\t\t<\/div><\/div><\/li>\n<\/ul>\n<p><strong><span style=\"color: #ff6600;\">Question#14<\/span>: Phenol reacts with aqueous bromine and decolorizes aqueous bromine forming the white precipitates of:<\/strong><\/p>\n<ul>\n<li>2, 4-Dibromophenol<\/li>\n<li>2-Bromophenol<\/li>\n<li>2, 4, 6- Tribromophenol<\/li>\n<li>3- Bromophenol<\/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>2-Bromophenol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#15<\/span>: Picric acid can be prepared from phenol by:<\/strong><\/p>\n<ul>\n<li>Halogenation<\/li>\n<li>Nitration<\/li>\n<li>Oxidation<\/li>\n<li>Sulphonation<\/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>Oxidation<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#16<\/span>: In which process alcohol is produced?<\/strong><\/p>\n<ul>\n<li>Esterification<\/li>\n<li>Dehyrohalogenation of vicinal dihalide<\/li>\n<li>Fermentation<\/li>\n<li>Condensation of two acetone molecules in the presence of a base<\/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>Fermentation<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#17<\/span>: Neopentyl alcohol is a type of alcohol:<\/strong><\/p>\n<ul>\n<li>Primary alcohol<\/li>\n<li>Secondary alcohol<\/li>\n<li>Tertiary alcohol<\/li>\n<li>Aromatic alcohol<\/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>Primary alcohol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#18<\/span>: Absolute alcohol does not be obtained by distillation process because:<\/strong><\/p>\n<ul>\n<li>It forms a constant boiling mixture<\/li>\n<li>Alcohol remains soluble in water<\/li>\n<li>Alcohol molecules are solvated<\/li>\n<li>Due to all the above reasons<\/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>It forms a constant boiling mixture<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#19<\/span>: Tertiary butyl alcohol does not\u00a0 undergo dehydrogenation because:<\/strong><\/p>\n<ul>\n<li>It does not contain \u03b1-hydrogen<\/li>\n<li>It contains only one \u2013OH group<\/li>\n<li>It contains electron-donating groups<\/li>\n<li>Stearic hindrance of alkyl groups<\/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>It does not contain \u03b1-hydrogen<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#20<\/span>: In esterification reaction, Which one of the following bounds of alcohol undergo cleavage?<\/strong><\/p>\n<ul>\n<li>C-H<\/li>\n<li>O-H<\/li>\n<li>C-O<\/li>\n<li>C-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>O-H<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#21<\/span>: Alcohol in which hydroxyl is attached to a carbon which is further attached to two alkyl groups is:<\/strong><\/p>\n<ul>\n<li>\u00a0Primary alcohol<\/li>\n<li>Secondary alcohol<\/li>\n<li>Tertiary alcohol<\/li>\n<li>None 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>Secondary alcohol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#22<\/span>: Fermentation is a process involving the conversion of:<\/strong><\/p>\n<ul>\n<li>Hydrocarbon to ethanol with the evolution of CO<sub>2<\/sub><\/li>\n<li>Hydrocarbon to ethanol with the evolution of CO<\/li>\n<li>Carbohydrate to ethanol with the evolution of CO<sub>2<\/sub><\/li>\n<li>Carbohydrate to ethanol with the evolution of CO<\/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>Carbohydrate to ethanol with evolution of CO<sub>2<\/sub><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#23<\/span>: What is the correct order for the acidity of water, phenol, and ethanol?<\/strong><\/p>\n<ul>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> OH&gt;H<sub>2<\/sub> O&gt; C<sub>2<\/sub> H<sub>5<\/sub> OH<\/li>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> OH&gt; C<sub>2<\/sub> H<sub>5<\/sub> OH&gt; H<sub>2<\/sub>O<\/li>\n<li>H<sub>2<\/sub>O&gt; C<sub>2<\/sub> H<sub>5<\/sub> OH&gt; C<sub>6<\/sub> H<sub>5<\/sub> OH<\/li>\n<li>H<sub>2<\/sub>O&gt; C<sub>6<\/sub> H<sub>5<\/sub> OH&gt; 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>C<sub>6<\/sub> H<sub>5<\/sub> OH&gt;H<sub>2<\/sub> O&gt; C<sub>2<\/sub> H<sub>5<\/sub> OH<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#24<\/span>: Which one can be used as a test for phenol?<\/strong><\/p>\n<ul>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> OH+CH<sub>3<\/sub>COCI in the presence of aq. NaOH<\/li>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> OH+HCHO in the presence of NaOH<\/li>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> O Na +CH<sub>3 <\/sub>CH<sub>2<\/sub> Br<\/li>\n<li>C<sub>6<\/sub> H<sub>5<\/sub> OH+ Br<sub>2<\/sub>(excess)<\/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>C<sub>6<\/sub> H<sub>5<\/sub> OH+ Br<sub>2<\/sub>(excess)<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#25<\/span>: Reaction of phenol with bromine in non-polar solvent gives:<\/strong><\/p>\n<ul>\n<li>2, 4, 6-Tribromophenol<\/li>\n<li>p-Bromophenol<\/li>\n<li>o-Bromophenol<\/li>\n<li>A mixture of o-Bromophenol and p-Bromophenol<\/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>A mixture of o-Bromophenol and p-Bromophenol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#26<\/span>: Which inorganic reagent may be used to distinguish between phenol and methanol?<\/strong><\/p>\n<ul>\n<li>Alkaline aqueous1<sub>2<\/sub><\/li>\n<li>Aqueous NaHCO<sub>3<\/sub><\/li>\n<li>K<sub>2<\/sub>Cr<sub>2<\/sub> O<sub>7<\/sub> in dil.H<sub>2<\/sub>SO<sub>4<\/sub><\/li>\n<li>Na metal<\/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>K<sub>2<\/sub>Cr<sub>2<\/sub> O<sub>7<\/sub> in dil.H<sub>2<\/sub>SO<sub>4<\/sub><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#27<\/span>: Phenol on treatment with dil.HNO<sub>3<\/sub> at low temperature gives:<\/strong><\/p>\n<ul>\n<li>o-Nitrophenol<\/li>\n<li>p-Nitrophenol<\/li>\n<li>m-Nitrophenol<\/li>\n<li>A mixture of o-Nitrophenol and p-Nitrophenol<\/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>A mixture of o-Nitrophenol and p-Nitrophenol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#28<\/span>: Alcohol in which\u00a0 -OH group is attached to a carbon which is further attached to only one alkyl group is:<\/strong><\/p>\n<ul>\n<li>Primary alcohol<\/li>\n<li>Secondary alcohol<\/li>\n<li>Tertiary alcohol<\/li>\n<li>None 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>Primary alcohol<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#29<\/span>: The statement which explains the acidic behavior of phenol:<\/strong><\/p>\n<ul>\n<li>Its phenoxide ion become stable due to resonance<\/li>\n<li>Phenol on treatment with Na metal produces H<sub>2<\/sub> gas<\/li>\n<li>Its aqueous solution has a pH around 5 or 6<\/li>\n<li>All of these<\/li>\n<li><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><\/li>\n<\/ul>\n<p><strong><span style=\"color: #ff6600;\">Question#30<\/span>: Excess alcohol at low temperature in the presence of cone.of H<sub>2<\/sub>SO<sub>4<\/sub> produce:<\/strong><\/p>\n<ul>\n<li>Ether<\/li>\n<li>Ester<\/li>\n<li>Organic acid<\/li>\n<li>Alkene<\/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>Ether<\/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>You can get the 2nd Year Chemistry Alcohols, Phenols, and Ethers MCQs with answers here. The important MCQs of this chapter is given here. Alcohols, Phenols, and Ethers are classes of organic compounds. Each one has its own nomenclature, manufacture method, and reactivity. Alcohol is prepared in industries. They have two types of reactions including &hellip;<\/p>\n","protected":false},"author":2,"featured_media":364,"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\/181"}],"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=181"}],"version-history":[{"count":0,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/181\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media\/364"}],"wp:attachment":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media?parent=181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/categories?post=181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/tags?post=181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}