Question Detail

Which gas is filled in refrigerators ?

Chlorofluorocarbon
Acetylene
Methane
Butane

Answer: Option A

Similar Questions :

1. Which element found in all organic compounds ?

carbon
nitrogen
calcium
none of them

Answer: Option A

2. Oxides of metals are alkaline.

TRUE
FALSE

Answer: Option A

3. Human bone does not contain

calcium
carbon
oxygen
phosphorous

Answer: Option C

Explanation:

Human bone contains calcium, carbon, phosphorous.

4. A catalyst is a substance which

increases the activation energy
increases the rate of reaction and increases the equilibrium concentration of products
changes the equilibrium of a reaction so that the concentration of the product increases
hastens the attainment of equilibrium

Answer: Option D

5. The metal that is used as a catalyst in the hydrogenation of oils is ?

Pb
Ni
Cu
Pt

Answer: Option B

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