`BF_3` molecule is planar but `NH_3` pyramical.
Explain.

Nh_3 molecule is formed by

BH_3 is planer molecule while NH_3 is pyramidal because

The bond angle in H_(2)O molecule is less than that of NH_(3) molecule because__________.

BCl_3 is a planar molecule while PCl_3 is pyramidal , because________.

BCl_(3) is a planar molecule while NCl_(3) is pyramidal, because __________.

The solution of NH_4CN is basic in nature. Explain.

Calculate the number of moles and molecules of ammonia (NH_3) gas in a volume 67.2 dm3 of it measured at STP.

Solve problems : What is the ratio of molecules in 1 mole of NH_3 and 1 mole of HNO_3 .

A complex is made of Co(III) and cosists of four NH_3 molecules and two Cl ions as ligands. What is the charge number and formula of complex ion?

In Ammonia molecule the bond angle is 107^@ and in water molecule it is 104^@35 , although in both the central atoms are sp3 hybridized. Explain.