Synthetic Materials

Question 16 :

Glass is made of the mixture of

A). quartz and mica
B). sand and silicates
C). salt and quartz
D). sand and salt
Answer : Option B

Question 17 :

The vast resources of unutilised natural gas can be used in the production of

A). graphite
B). Synthetic petroleum
C). fertilisers
D). carbide
Answer : Option C

Question 18 :

Paper is manufactured by

A). Wood and resin
B). Wood, sodium and bleaching powder
C). Wood, calcium, hydrogen sulphite and resin
D). Wood and bleaching powder
Answer : Option C

Question 19 :

Gypsum is added to cement clinker to

A). increase the tensile strength of cement
B). decrease the rate of setting of cement
C). facilitate the formation of colloidal gel
D). bind the particles of calcium silicate
Answer : Option B

Question 20 :

Soap is a mixture of sodium or potassium salts of

A). dicarboxylic acids
B). monocarboxylic acids
C). glycerol
D). tricarboxylic acids
Answer : Option B