Question

In \[\ce{NO^{-}3}\] ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are ______.

विकल्प

• 2, 2

• 3, 1

• 1, 3

• 4, 0

Answer 1

In \[\ce{NO^{-}3}\] ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are 4, 0.

Explanation:

In N-atom, number of valence electrons = 5

Due to the presence of one negative charge, number of valence electrons = 5 + 1 = 6. One O-atom forms two bonds (= bond) and two O-atom are shared with two electrons of N-atom.

Thus, 3 O-atoms are shared with 8 electrons of N-atom.

Number of bond pairs (or shared pairs) = 4

Number of lone pairs = 0