Which of the following pairs of ions is isoel | vedclass

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(D) Isoelectronic species have the same number of electrons,and isostructural species have the same geometry.$1.$ For pair $(a)$: $CO_3^{2-}$ has $6 +

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Both $(a)$ and $(c)$

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(D) Isoelectronic species have the same number of electrons,and isostructural species have the same geometry.$1.$ For pair $(a)$: $CO_3^{2-}$ has $6 + (3 	imes 8) + 2 = 32$ electrons and $NO_3^-$ has $7 + (3 	imes 8) + 1 = 32$ electrons. Both have $sp^2$ hybridization and a trigonal planar shape.$2.$ For pair $(c)$: $ClO_3^-$ has $17 + (3 	imes 8) + 1 = 42$ electrons and $SO_3^{2-}$ has $16 + (3 	imes 8) + 2 = 42$ electrons. Both have $sp^3$ hybridization (with one lone pair) and a pyramidal shape.Since both pairs $(a)$ and $(c)$ satisfy the conditions,the correct option is $(d)$.

List-$I$	List-$II$
$(A)$ $C_{2}H_{4}$	$(I)$ $3\sigma$ bonds, $2\pi$ bonds
$(B)$ $C_{2}H_{2}$	$(II)$ $3\sigma$ bonds, $1$ lone pair
$(C)$ $CH_{4}$	$(III)$ $4\sigma$ bonds
$(D)$ $NH_{3}$	$(IV)$ $5\sigma$ bonds, $1\pi$ bond

Which of the following pairs of ions is isoelectronic and isostructural?

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