Aldehydes and ketones undergo

Fill in the blanks by suitable choices. The carbon atom in carbonyl group is _____ hybridised. The carbonyl group in aldehydes and ketone undergoes____. The carbonyl group in aldehydes and ketones undergoes ______ reactions. Aldehydes which have alpha -H atom undergo ______ reaction while aldehydes which have no alpha -H atom undergo ______ reaction.

Fill in the blanks by suitable choices. The carbon atom in carbonyl group is _____ hybridised. The carbonyl group in aldehydes and ketone undergoes____. The carbonyl group in aldehydes and ketones undergoes ______ reactions. Aldehydes which have alpha -H atom undergo ______ reaction while aldehydes which have no alpha -H atom undergo ______ reaction.

(a) The double bond in aldehydes and ketones is reactive towards nucleophilic reagents like CN^(-) whereas that in an alkene is not. (b) Alkenes undergo electrophilic addition whereas aldehydes and ketones undergo nucleophilic addition.

(a) How many you account for the following : (i) Aldehydes are more reactive than ketones towards nucleophiles. (ii) The boiling points of aldehydes and ketones are lower than of the corresponding acids. (iii) The aldehydes and ketones undergo a number of addition reactions. (b) How will you distinguish between these compounds: (i) Acetaldehyde and benzaldehyde (ii) Propanone and propanol

Explain the following (a) it is necessary to control the pH during the reaction of aldehydes or ketons with ammonia derivations . (b ) Benzophene does not react with sodium bisulphite (c ) Acetaldehyde gives aldol condensation while formaldehyde does not . (d ) HCHO reacts with nHCN faster than CH_3 CHO (e ) Aldehydes and ketons undergoes nucleophilic addition reactions .

What type of aldehyde and ketones undergo Cannizzaro's reaction ?