Explain the formation of the following molecules using hybridisation : `BF_3`.

Explain the formation of the following molecules using hybridisation : BeCl_2 .

What is hybridization ? Explain the formation of the following molecules using hybridization. (a) BeCl_2 (b) BF_3

Explain the formation of Mirage .

Explain the formation of a rainbow.

Explain the formation of the following molecules using valence bond theory. N_2 molecule