Question

In NO₃⁻ ion number of bond pair and lone pair of electrons
on nitrogen atom respectively are
(a) 2, 2 (b) 3, 1 (c) 1, 3 (d) 4, 0

Answer 1

Explanation:

in the outermost shell of nitrogen their are 5 electrons out of them 3 form 3 bond pairs 2forms a loan pairs

Answer 2

In NO3⁻ ion number of bond pair and lone pair of electrons on nitrogen atom is 4 and 0 respectively.

• On N-atom, the number of valence electrons are 5.

• Due to the presence of a negative charge on molecule, the total number of valence electron present on it = 5+1 =6.

• 3 O-atom shares the 8 electron of

N-atom.

• Hence, the number of bonding pairs is 4 and the number of lone pair is 0.