Chemistry – Class 12 Mock Test 10

10%

Question 1 of 10

1. What are the monomers of PHBV?

2-Hydroxybutanoic acid, 3-hydroxypentanoic acid

3-Hydroxybutanoic acid, 3-hydroxypentanoic acid

2-Hydroxybutanoic acid, 2-hydroxypentanoic acid

3-Hydroxybutanoic acid, 2-hydroxypentanoic acid

Question 1 of 10

Question 2 of 10

2. Which vitamin can be obtained from sunlight?

Question 2 of 10

Question 3 of 10

3. Deficiency of vitamin K increases the blood clotting time.

True

False

Question 3 of 10

Question 4 of 10

4. All drugs block enzyme activity by occupying the active site before the substrate.

True

False

Question 4 of 10

Question 5 of 10

5. Which of the following is not required for the production of dacron?

450K temperature

Triethylaluminium-titanium tetrachloride

Ethylene glycol

Terephthalic acid

Question 5 of 10

Question 6 of 10

6. Which of the following is incorrect regarding natural rubber?

Resistant to attack by oxidising agents

Soluble in benzene

Shows thermoplastic behaviour

Shows high water absorption capacity

Question 6 of 10

Question 7 of 10

7. All hormones are proteins.

False

True

Question 7 of 10

Question 8 of 10

8. Buna-N involves acrylonitrile as one of the monomers.

False

True

Question 8 of 10

Question 9 of 10

9. Cyclohexanone on treatment with hydroxylamine gives P, which on treatment with sulphuric acid gives Q. When Q is heated with water at high temperature, R is obtained. Identify R.

Nylon-6,6

Amino caproic acid

Caprolactam

Nylon-6

Question 9 of 10

Question 10 of 10

10. Identify the complementary strand of the DNA primary structure ATGCCGATC.

AUGCCGAUC

TACGGCTAG

GATCGGCAT

UACGGCUAG

Question 10 of 10