Among the following anions (a) CH3, (b) NH2, (c) OH-, (d) F-, the order of basicity is:
(a) a > b > c > d
(b) b > a > c > d
(c) c > b > a > d
(d )c > a > b > d
(a) Stronger is acid, weaker is its conjugate base or weaker is nucleophilicity.
The acidic order HF > H2O > NH3 > CH4