JEE Main 2023 — Chemistry Inorganic Chemistry

2023mcqmedium

In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at no. of $\mathrm{Ti}:22,V:23,\mathrm{Cr}:24,\mathrm{Mn}:25,\mathrm{Fe}:26$ )

Official previous-year question

Held on 8 Apr 2023 · Verified 6 Jul 2026.

Options

A
$V(\mathrm{IV})$
B
$\mathrm{Mn}(\mathrm{VII})$
C
$\mathrm{Fe}(\mathrm{III})$
D
$\mathrm{Ti}(\mathrm{III})$

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Solution

In chromyl chloride ( ${\mathrm{CrO}}_{2}{\mathrm{Cl}}_{2}$ ), the oxidation state of chromium $(\mathrm{Cr})$ is $+6.$

So, $\mathrm{Cr}(\mathrm{VI})=[\mathrm{Ar}{]}^{18}3{d}^{0}$

For the given elements the configuration is, $\mathrm{Mn}(\mathrm{VII})=[\mathrm{Ar}{]}^{18}3{d}^{0}$

$\mathrm{Fe}(\mathrm{III})=[\mathrm{Ar}{]}^{18}3{d}^{5}$

$\mathrm{Ti}(\mathrm{III})=[\mathrm{Ar}{]}^{18}3{d}^{1}$

$V(\mathrm{IV})=[\mathrm{Ar}{]}^{18}3{d}^{1}$

So among the given options $\mathrm{Mn}(\mathrm{VII})$ and $\mathrm{Cr}(\mathrm{VI})$ will have same number of d-electrons.

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JEE Main 2023 — Chemistry Inorganic Chemistry

2023mcqmedium

In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at no. of $\mathrm{Ti}:22,V:23,\mathrm{Cr}:24,\mathrm{Mn}:25,\mathrm{Fe}:26$ )

Official previous-year question

Held on 8 Apr 2023 · Verified 6 Jul 2026.

Options

A
$V(\mathrm{IV})$
B
$\mathrm{Mn}(\mathrm{VII})$
C
$\mathrm{Fe}(\mathrm{III})$
D
$\mathrm{Ti}(\mathrm{III})$

Did you get this right?

Solution

In chromyl chloride ( ${\mathrm{CrO}}_{2}{\mathrm{Cl}}_{2}$ ), the oxidation state of chromium $(\mathrm{Cr})$ is $+6.$

So, $\mathrm{Cr}(\mathrm{VI})=[\mathrm{Ar}{]}^{18}3{d}^{0}$

For the given elements the configuration is, $\mathrm{Mn}(\mathrm{VII})=[\mathrm{Ar}{]}^{18}3{d}^{0}$

$\mathrm{Fe}(\mathrm{III})=[\mathrm{Ar}{]}^{18}3{d}^{5}$

$\mathrm{Ti}(\mathrm{III})=[\mathrm{Ar}{]}^{18}3{d}^{1}$

$V(\mathrm{IV})=[\mathrm{Ar}{]}^{18}3{d}^{1}$

So among the given options $\mathrm{Mn}(\mathrm{VII})$ and $\mathrm{Cr}(\mathrm{VI})$ will have same number of d-electrons.

JEE Main 2023 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main 2023 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main Inorganic Chemistry in other years

More JEE Main Inorganic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

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