AIIMS2018Chemistry-Inorganic Chemistry

AIIMS 2018 Chemistry Periodic Properties MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which of the following has correct increasing order of hydrolysis ?

A

CCl4<MgCl2<AlCl3<SiCl4<PCl5\text{CCl}_4 < \text{MgCl}_2 < \text{AlCl}_3 < \text{SiCl}_4 < \text{PCl}_5

B

PCl5<MgCl2<AlCl3<SiCl4<CCl4\text{PCl}_5 < \text{MgCl}_2 < \text{AlCl}_3 < \text{SiCl}_4 < \text{CCl}_4

C

PCl5<SiCl4<MgCl2<AlCl3<CCl4\text{PCl}_5 < \text{SiCl}_4 < \text{MgCl}_2 < \text{AlCl}_3 < \text{CCl}_4

D

none of these

Correct Answer

Option A

Detailed Explanation

Option A is correct because it accurately reflects the increasing extent of hydrolysis of compounds from left to right across a period, where the electronegativity and ability to stabilize the resulting ions increase. CCl₄ does not undergo hydrolysis due to the absence of vacant d-orbitals necessary for the formation of stable intermediates, making it inert in aqueous solutions. Other options are not applicable as they do not provide relevant information or alternatives regarding hydrolysis behavior or the properties of CCl₄. Understanding these concepts is crucial for predicting the reactivity of halogenated compounds in hydrolysis reactions.

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