Catalyst used in Rosenmund reduction is

Acetophenone cannot be prepared easily starting from

The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is

The major product of the following reaction is:
$CH_3CH_2CH=CH_2$ $\xrightarrow[Rh \ \text{catalyst}]{H_2/CO}$

Identify the compound formed by the action of chromyl chloride on toluene in the presence of $CS_2$,followed by hydrolysis.

Propanenitrile on reaction with ethylmagnesium iodide in the presence of dry ether gives an imine complex. This imine complex on acid hydrolysis forms: