Aldehydes and ketons are susceptible to nuclephlic addition because carbonylgroup
Polar (due to electronegativeity difference between carbon and oxygen
positive charge on carbonyl compound towards nucleophilic . this addition is catalysed by acid . REactivity of carbonyl compound towards nuclephilic addotion increase with increase in teh electron deficiency at carbonyl carbon Thus (-I.E ) groups increase while (+I.E ) groups decreases the reactivity of carbonyl compound .
Carbonyl compounds show nucleophilic addition with :

Options

A. `HCN`
B. `NaHSO_3`
C. `(CH_3OH)`
D. all of these

Answer

D

Explanation

`R- overset(O ) overset(||) C - H overset( HCN) to R - underset( CN) underset(|) overset(OH) overset(|) C-H` ( Nucleophilic addition ) ` R - overset(O ) overset(||)C - H overset( NaHSO_3) to R - underset( HSO_3) underset(|) overset(O^(o+) Na^(o+) ) overset(|) C-H ` ( nucleophilic addition )
` R- overset(O ) overset(||)C -H overset( CH_3 OH) to R - underset(OCH_3) underset(|) overset(OH) overset(| ) C-H ` ( nucleophilic addition)