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Question 1
Arrange the following substances in chronological order of their first synthesis in lab :
1) Black gold
2) Fullerene
3) Graphene
4) Kevlar
Select correct answer from the codes given below:
Question 2
Match List – I (polymers) with List – II (their monomers) and select the correct answer from the codes given below:
List – I
a. Polythene
b. Bakelite
c. Polyvinyl chloride
d. Neoprene
List – II
1) Phenol-formaldehyde
2) Chloroprene
3) Ethene
4) Vinyl Chloride
Codes:
Question 3
Nepenthes Khasiana. a rare and endangered plant is found in
Question 4
Which one of the following bio transformations provides maximum energy to human body?
Question 5
Which one of the following is not natural polymer?
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Dec 4BPSC
