Chemistry 2nd Year Transition Elements MCQs

Check out the Chemistry 2nd Year Transition Elements MCQs here online. Transition elements are those in which d or f-subshells are partially filled in the atomic state or in atomic state. They include the elements of Groups IIB and IIIB as non-typical and IB, IVB to VIIIB groups elements as typical transition elements. They have unique properties and characteristics. They contain complex compounds. Iron is an important Transition element. Steel can be manufactured by Open Hearth and Bessemer’s process. Corrosion is a process which occurs in metals. There are different methods to prevent metal from corrosion. Chromates and Dichromate are important salts of Chromic and Dichromic acids. So, this is the introduction of this chapter. Have a look at the important MCQs from this chapter below.

Chemistry 2nd Year Transition Elements MCQs

 

KEY POINTS

 

Question#1. All noble gases are:

• Mono-atomic
• Tri-atomic
• Di-atomic
• Polyatomic

Question#2. Demerits of water purification by chlorination is/are:

• Formation of chloroform with organic matter in water which is a liver carcinogen
• Risk of the bladder and rectal cancer
• Eye irritation due to the formation of chloramines
• All of the above

Question#3. Advantages of water disinfection through chlorination is/are:

• Killing pathogens bacteria to avoid water-borne diseases
• It’s a highly cheap and simple method
• Skipping the transportation fatigue of chlorine cylinders
• Both a and b

Question#4. An element having high ionization energy and tends to be chemically in-active would most likely to be a/an:

• Alkali metal
• Noble gas
• Transition element
• Halogen

Question#5. The substituent of chlorine in water disinfection:

• Ozone
• Chloramines
• Hypochlorous acid
• All of the above

Question#6. Carbon suboxide:

• CO₂
• C₃O₂
• C₂O₄
• CO

Question#7. Which of the following about the structure of silica is correct:

• Every silicon atom is attached tetrahedrally to four oxygen atoms
• There exist a double bond between every silicon and oxygen
• Every oxygen atom is attached to two Silicon atoms
• Both a and c

Question#8. Melting and boiling points of halogens increase down the group due to:

• Increasing atomic mass
• No polar character
• Increasing polarizability
• All of the above

Question#9. Dry ice (solid CO₂) has geometry______.

• Linear
• Trigonal planer
• Bent and angular
• All of the above

Question#10. The number of shared pair of electrons between C and O in a molecule of CO is:

• 1
• 3
• 2
• 4

Question#11. Which one of the following is the same for SiO₂ and CO₂:

• Si – O bond distance and C – O bond distance
• Empirical formula
• Dipole moments
• Bond angles

Question#12. Beryllium and barium do not form an oxide with oxygen:

• Normal oxide
• Acidic oxide
• Basic oxide
• Amphoteric oxide

Question#13. Which one of the following doesn’t react with water even at red hot temperature

• Be
• Ca
• Mg
• Ba

Question#14. All II-A group elements react with halogens to form halides of the type:

• Ionic
  
• Polymeric
• Covalent
• Amphoteric

Question#15. Which one of the following doesn’t react quickly with water at room temperature:

• K
  
• Mg
• Li
• Na

Question#16. The element of which group show ‘‘2’’ and ‘’4’’ oxidation states:

• IA
• II A
• IVA
• VIII A

Question#17. Which of the following group of periodic table possess the elements of all the three physical states of matter?

• IVA
• VA
• VII A
• VIII A

Question#18. There are _________ oxides of carbon are known.

• Two
• Three
  
• Four
• Five

Question#19. Which of the following hydroxide is more soluble in water?

• LiOH
• Mg(OH)₂
• Sr(OH)₂
• Ba(OH)₂

Question#20. The correct order of acidity amongst halogen acids is:

• HXO₄ > HXO₃ > HXO₂ > HXO
• HXO₄ < HXO₃ < HXO₂ < HXO
• HXO₃ < HXO₂ = HXO₄ > HXO
• HXO₄ < HXO₂ < HXO₃ < HXO

Question#21. Why bleaching powder is always preserved in sealed plastic bags?

• It is hygroscopic
• It decomposed
• Chlorine gas escapes
• Calcium change in calcium hydroxide

Question#22. Which of the following element is used in earth quick prediction?

• Xe
• Rn
  
• F
• Br

Question#23. Which of the following halogen shows metallic luster?

• Fluorine
• Chlorine
• Iodine
  
• Al

Question#24. Which of the following is the strongest alkali?

• NaOH
• Ca(OH)₂
• CsOH
  
• KOH

Question#25. Milk of magnesia is:

• Suspension of Ca(OH)₂
• Suspension of Mg Mg(OH)₂
• Suspension of Mg(OH)₂ in water
• Suspension of Ca(OH)₂ and Mg(OH)₂

Question#26. Which of the following property of IIA group decreases down to the group?

• Atomic radii
• Reactivity of H₂O
• Basicity of hydroxides
• Ionization energy

Question#27. Which ion will have maximum heat of hydration?

• Na⁺
• Cs²⁺
• Ba²⁺
• Mg²⁺

Question#28. The reactivity of oxides of alkaline earth metals _________ down to the group.

• Increase
• Decrease
• Unpredictable
• Remains constant

Question#29. CO₂ is gas while SiO₂ is solid at room temperature. The exact reason is that:

• SiO₂ is a giant molecule due to bigger atomic size of Si
• No individual molecule of SiO₂ exist at room temperature
• Each “Si” is attached with four O-atoms
• All of the above are possible reasons

Question#30. Which of the following is not a characteristic of SiO₂?

• High transparency to light
• Very low thermal expansion
• Solubility in aqua-rigia
• Excellent insulator