Chemistry · Coordination Compounds

JEE Main 2024 — 27 January, Shift 1 — Question 67

Yellow compound of lead chromate gets dissolved on treatment with hot NaOH solution. The product of lead formed is a :

Option A:
Tetraanionic complex with coordination number six
Option B:
Neutral complex with coordination number four
Option C:
Dianionic complex with coordination number six
Option D:
Dianionic complex with coordination number four
Correct

Answer: D

Step-by-step solution

$\mathrm{PbCrO}_{4}+\mathrm{NaOH}$ (hot excess) $\rightarrow\left[\mathrm{Pb}(\mathrm{OH})_{4}\right]^{-2}+$ $\mathrm{Na}_{2} \mathrm{CrO}_{4}$

Dianionic complex with coordination number four

Answer key and solution verified before publishing.

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Exam: JEE Main 2024
Paper: 27 January, Shift 1
Subject: Chemistry
Chapter: Coordination Compounds
Topic: preparation and Uses of Coordination Compounds

Consider the following complex ions P= [ FeF 6 ]^3- Q= [ V ( H 2 O ) 6 ]^2+ R= [ Fe ( H 2 O ) 6 ]^2+ The correct order of the complex ions…

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