The order of reactivity of carbonyl compounds for nucleophilic addition is
1) H2C = O > RCHO > ArCHO > R2C = O > Ar2C = O
2) H2C = O > R2C = O > Ar2C = O > RCHO > ArCHO
3) ArCHO > Ar2C = O > RCHO > R2C = O > H2C = O
4) Ar2C = O >R2C = O > ArCHO > RCHO > H2C = O
1) H2C = O > RCHO > ArCHO > R2C = O > Ar2C = O