Answer & Solution
Answer: Option C
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12. Which of the following statements about vitamins are correct?
1. Vitaminc C is essential to make connective tissue in body.
2. Vitamin D is needed for synthesis of eye pigment.
3. Vitamin B12 helps in maturation of RBC.
4. Vitamin-C is required to make use of calcium absorbed from the intestine.
Select the correct answer:
1. Vitaminc C is essential to make connective tissue in body.
2. Vitamin D is needed for synthesis of eye pigment.
3. Vitamin B12 helps in maturation of RBC.
4. Vitamin-C is required to make use of calcium absorbed from the intestine.
Select the correct answer:
13. Teflan is used in cooking equipment in a nonstick coating, used in the electronic industry due to its insulation characteristic in wiring etc., is a polymer containing carbon . . . . . . . . bonding is involved.
14. Which one of the following polymer are used for making bulletproof materials?
1. Kevlar
2. Glypal
3. Lexan
Select the correct answer:
1. Kevlar
2. Glypal
3. Lexan
Select the correct answer:
15. Which of the following is an example of a non-cellulosic fibre?
16. Which one of the following statements regarding starch and cellulose is not correct?
17. Which one of the following polymers is made of proteins?
18. Enzymes
19. Match the following columns.
Column I
Column II
a. Gypsum
1. Prevent UV rays
b. Nylon
2. Non stick utensils coating
c. Teflon
3. Textile fabrics
d. Crookes glass
4. Cement
| Column I | Column II |
| a. Gypsum | 1. Prevent UV rays |
| b. Nylon | 2. Non stick utensils coating |
| c. Teflon | 3. Textile fabrics |
| d. Crookes glass | 4. Cement |