In which case formation of butane nitrile is possible ?

In which cases delocalisation of charge is possible ?

In which cases delocalisation of charge is possible ?

In which case, a spontaneous reaction is possible at any temperature?

In which case, a spontaneous reaction is possible at any temperature

In which case, a spontaneous reaction is possible at any temperature:

In which case butane is formed

Which product will be obtained by the hydrolysis of the product obtained by reaction of butane-nitrile with ethyl magnesium bromide ?

In which of the following cases functional isomerism is not possible?