The catalyst used in the preparation of an alkyl chloride by the action of dry HCl on an alcohol is

The catalyst used in the preparation of an alkyl chloride by the action of dry HCl on the alcohol is

Catalyst used in the preparation of alkyl chlorides by the action of dry HCl on an alcohol is

Catalyst used in the preparation of methyl alcohol from water gas is

In the preparation of iron (III) chloride by the action of dry chlorine on hot iron, heating is discontinued once the reaction starts. Give reason.

Chlorine cannot be prepared by the action of HCl on

Name the reaction used in the preparation of alkyl fluoride from alkyl chloride.