Copper is dissolved from its ore by H2SO4 in a percolation tank made of

Question: Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the
[A].

decolourisation of sugar.

[B].

solvent recovery from air and gases

[C].

absorption of gases and vapor.

[D].

electrode manufacture.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Main constituent of the gas produced from a gobar gas plant is
[A].

CO2

[B].

CH4

[C].

H2

[D].

CO

Answer: Option B

Explanation:

No answer description available for this question.