When `NH_(3)` is treated with HCl, H-N-H bond angle

The H-N-H bond angle in NH_3 is greater than the H-As-H bond angle in AsH_3 .

The H-H-H bond angle in NH_3 is greater than the H-As-H bond angle in AsH_3 .

Why the H – P – H bond angle in PH_(3) is less than H – N – H bond angle in NH_(3) ?

Why is the H-O-H bond angle in H_(2)O smaller than H-N-H bond angle in NH_(3) ?

When C_(2)H_(5)Br is treated with excess amount of alcoholic NH_(3) the major product obtained is _________.

When C_(2)H_(5)Br is treated with excess amount of alcoholic NH_(3) the major product obtained is _________.

Bond angle in (CH_(3))_(3) N is little more than the bond angle in NH_(3) . Explain.