In which of the following process, Vanadium Pentoxide is used as a catalyst?

A). Contact process

B). Haber process

C). Solvay process

D). None of these

The rate of chemical reaction does not depend on?

A). Concentration

B). Catalyst

C). Temperature

D). Pressure

Deficiency of vitamin D causes?

A). Rickets

B). Beri-Beri

C). Scurvy

D). Night blindness

Which of the following is the best source of vitamin A?

A). Apple

B). Carrot

C). Amla

D). Radish

Which of the following is not a chemical reaction?

A). Burning of paper

B). Digestion of food

C). Conversion of water into steam

D). Burning of coal

Which of the following is a chemical change?

A). Rusting of iron

B). Tempering of iron

C). Melting of iron

D). Bending of iron

Photoelectric effect was discovered by?

A). Einstein

B). Hertz

C). Bohr

D). Plank

Tetraethyl lead is used as?

A). Mosquito repellent

B). Pain killer

C). Fire extinguisher

D). Petrol additive

The hydrogenation of the vegetables oils takes place in the presence of finely divided?

A). Aluminum

B). Charcoal

C). Silica

D). Nickel

Which of the following is used in beauty parlor`s for hair setting?

A). Phosphorus

B). Sulphur

C). Chlorine

D). Silicon

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