Synthetic Materials

16

Which of the following is a protein?

A. Natural rubber
B. Starch
C. Cellulose
D. None of these

17

Which of the following is used for removing air bubbles from glass during its manufacture?

A. Arsenous oxide
B. Potassium carbonate
C. Soda ash
D. Feldspar

18

Detergents used for cleaning clothes and utensils contain?

A. bicarbonates
B. bismuthates
C. sulphonates
D. nitrates

19

Epoxy resins are used as

A. detergents
B. insecticides
C. adhesives
D. moth repellents

20

Which of the following is commonly called a 'polyamide'?

A. Terylene
B. Nylon
C. Rayon
D. Orlon