Question

What is the valency of?
i. Fluorine in CaF2
ii. Carbon in CH4
iii. Nitrogen in NO2
iv. Chlorine in CaCl2
v. Pb in PbO2

Answer 1

Explanation:

$1) \: flourine ^{ - 2} \\ 2) \: carbon ^{ - 2} \\ 3) \: nitrogen ^{ - 1} \\ 4)chlorine ^{ - 1}$