Give reason for the following:
In Bosch process- the final gaseous products are passed through caustic potash [KOH] soln.

Which of the following pair of substance give same gaseous product on reaciton with water?

Correct the following statements : Hydrogen is separated from CO by passing the mixture through caustic potash solution.

Give reasons for the following - pertaining to Hall Herault's process. The fusion temperature of the electrolyte has be lowered before conducting the electrolytic reduction.

Give reason for each of the following: In the contact process of manufacture of sulphuric acid, the oxide of arsenic is removed.

Give balanced equations for the following: Zinc hydroxide is reacted with caustic soda soln.

State one relevant observation for the following: When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.

State one appropriate observation for the following: When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.

Give reasons for the following : The gaseous product obtained differs when zinc reatc with dilute and with conc . H_(2)SO_(4) respectively.

Give balanced chemical equations for the following: Chlorine gas is passed through cold, dilute NaOH.