The nucleophilicities of `CH_(3)^(-) , NH_(2)^(-) , OH^(-) and F^(-)` decrease in which order ?

Arrang the anions (p) overset(-)CH_(3),(q)overset(-)NH_(2),(r)OH^(-), (s)F^(-), in decreasing order of their basic strength .

The decreasing order of nucleophilicity for the folllwing anions is CH_(3)CO_(2)^(-), CH_(3)O^(-), C_(6)H_(5)O^(-), NO_(3)

Arrange H_(2)O, NH_(3) and CH_(4) in the decreasing order of bond angle.

Arrange the following in order of their (i) Increasing basicity H_(2)O,OH^(-),CH_(3)OH,CH_(3)O^(-) (ii) Increasing reactivity in nucleophilic substitution reactions CH_(3)F,CH_(3)l,CH_(3)Br,CH_(3)Cl