Q2 · CSIR NET Chemistry, June 2012
Paper: CSIR NET June 2012 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Chemical Bonding – General · Marks: 2 · Difficulty: Easy
The size of the d orbitals in Si, P, S and Cl follows the order.
(a)$\mathrm{Cl}>\mathrm{S}>\mathrm{P}>\mathrm{Si}$
(b)$\mathrm{Cl}>\mathrm{P}>\mathrm{S}>\mathrm{Si}$
(c)P $>$ S $>$ Si $>$ Cl
(d)Si $>$ P $>$ S $>$ Cl
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Increasing effective nuclear charge across the period contracts the 3d orbitals: Si > P > S > Cl (d).
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