Chemistry · Coordination Compounds

JEE Main 2026 — 24 January, Evening Shift — Question 69

A chromium complex with a formula CrCl3⋅6H2O\mathrm{CrCl}_{3} \cdot 6 \mathrm{H}_{2} \mathrm{O} has a spin only magnetic moment value of 3.87 BM and its solution conductivity corresponds to 1:21: 2 electrolyte. 2.75 g of the complex solution was initially passed through a cation exchanger. The solution obtained after the process was reacted with excess of AgNO3\mathrm{AgNO}_{3}. The amount of AgCl formed in the above process is ____\_\_\_\_ g. (Nearest integer) [Given : Molar mass in gmol−1Cr:52;Cl:35.5\mathrm{g} \mathrm{mol}^{-1} \mathrm{Cr}: 52 ; \mathrm{Cl}: 35.5, Ag:108,O:16,H:1]\mathrm{Ag}: 108, \mathrm{O}: 16, \mathrm{H}: 1]

Answer: 3

Numerical answer — enter this value.

Step-by-step solution

[Cr(H2O)5Cl]Cl2⋅H2O+AgNO3→2AgCl\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{Cl}\right] \mathrm{Cl}_{2} \cdot \mathrm{H}_{2} \mathrm{O}+\mathrm{AgNO}_{3} \rightarrow 2 \mathrm{AgCl} 2.75/266.5 =0.0103=0.0103 moles 0.02063 mole \end{enumerate}

Mass of AgCl=0.02063×143.5=2.96gm\mathrm{AgCl}=0.02063 \times 143.5=2.96 \mathrm{gm}

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Subject
Chemistry
Chapter
Coordination Compounds
Topic
Isomerism in Coordination Compounds
A chromium complex with a formula CrCl 3 × 6 H 2 O has a spin only… | JEE Main 2026 PYQ with Solution · DhiX AI