Statement-1: ${SO}_{2}, {NO}_{3}^{-}$ and ${CO}_{3}^{2 -}$ are isoelectronic as well as isostructural species.
Statement-2: The d and /-orbitals do not shield the nuclear charge very effectively. Therefore, there is significant reduction in the size of the ions, just after d or f orbitals have been completely filled.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Statement-1 is False, Statement-2 is True

Statement-1 is True, Statement-2 is True, Statement-2 Is NOT a correct explanation for Statement-1.

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1

Statement-1 is True, Statement-2 is False.

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The compound has the following number of electrons:

$\begin{aligned} {NO}_{3}^{-} = 32 e^{-} \\ {CO}_{3}^{2 -} = 32 e^{-} \\ {ClO}_{3}^{-} = 42 e^{-} \\ {SO}_{3}^{-} = 41 e^{-} \end{aligned}$

As a result, ${NO}_{3}^{-}$ and ${CO}_{3}^{2 -}$ are isoelectronic.
The structures of ${NO}_{3}^{-}$ and ${CO}_{3}^{2 -}$ are both trigonal planar. As a result, ${NO}_{3}^{-}$ and ${CO}_{3}^{2 -}$ are likewise isostructural.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Get Expert Academic Guidance – Connect with a Counselor Today!