Cooking oil can be converted into vegetable ghee by the process of

A). Oxidation

B). Hydrogenation

C). Distillation

D). Crystallization

The contact process is involved in the manufacture of —

A). Nitric acid

B). Sulfuric acid

C).  Ammonia

D). Caustic soda

An alloy is used in making heating elements for electric heating devices is —

A). Solder

B). Alloy steel

C). Nichrome

D). German silver

German Silver is an allow of —

A). Copper, Silver and Nickel

B). Silver, Copper and Aluminum

C). Zinc, Copper and Nickel

D). Silver, Zinc and Nickel

Air is a/an—

A). Compound

B). Element

C). Mixture

D). Electrolyte

Which of the following substance is a bad conductor of electricity but a good conductor of heat?

A). Asbestos

B). Celluloid

C). Purspecks

D). Mica

Carborundum is —

A). Silicon Dioxide

B).  Silicon Carbide

C). Silicon Nitride

D). Silicon Phosphide

Which of the following is the best conductor of electricity?

A). Copper

B). Mica

C). Zinc

D). Silver

Soda water contains—

A). Nitrous acid

B). Carbonic acid

D). Carbon dioxide

D). Sulfuric acid

Which of the following is the basis of the modern periodic table?

A). Atomic mass

B). Atomic number

C). Atomic size

D). Atomic volume

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