Which of the following species has plane triangular shape

Which Of The Following Species Has Plane Triangular Shape Chemistry Question

Which of the following species has plane triangular shape

Options

(a) N₃
(b) NO₃⁻
(c) NO⁻₂
(d) CO₂

Correct Answer:

NO₃⁻

Explanation:

Hybridization of NO₃⁻=1/2 (5+0+1-0)
= 6/2=3=sp² hence geometry is trigonal planner.
NO₂⁻ (nitrate ion) also has sp² hybridization and gives a trigonal planner geometry but because there are only two outer atoms, the molecular geometry is bent with <120⁰ bond angles.

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Topics: Chemical Bonding and Molecular Structure (86)
Subject: Chemistry (2512)

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