Class XII Chemistry IQs on Biomolecules

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Question 1

Identify the following mechanism of polymerisation:

• ACondensation polymerisation
• BAddition Polymerisation
• CDehydrative mechanism
• DHydrolysis

Question 2

Thiol group is present in

• ACysteine
• BMethionine
• CCytosine
• DCystine

Question 3

Which of the following is a polyamide?

• ANylon-66
• BTerylene
• CPolythene
• DBuna-S

Question 4

Optical activity is shown by

• AGlucose
• BFructose
• CSucrose
• DAll of these

Question 5

Ultra-violet light causes

• ASticky metaphases
• BPhotodynamic action
• CDestruction of hydrogen bonds between complementary DNA strands
• DFormation of pyrimidines

Question 6

Which of the vitamins given below is water soluble?

• AVitamin C
• BVitamin D
• CVitamin E
• DVitamin K

Question 7

Polymer used in bullet proof glass is

• APMMA
• BLexan
• CNomex
• DKevlar

Question 8

Carprolactam is the monomer of

• ANylon-6
• BGlyptal
• CP.T.F.E.
• DMelamine

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