(C) Transition metals exhibit variable valency because the energy difference between the $ns$ and $(n-1)d$ orbitals is very small. This allows electro

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Assertion is True but the Reason is False.

(C) Transition metals exhibit variable valency because the energy difference between the $ns$ and $(n-1)d$ orbitals is very small. This allows electrons from both the $ns$ and $(n-1)d$ subshells to participate in bond formation. Therefore,the Assertion is True,but the Reason is False because the energy difference is small,not large.

Class 12 Chemistry d-and f-Block Elements General Characteristics

Medium

Assertion : Transition metals show variable valency.
Reason : Transition metals have a large energy difference between the $ns^2$ and $(n-1)d$ electrons.

A
Both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
B
Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C
Assertion is True but the Reason is False.
D
Both Assertion & Reason are False.

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d-and f-Block Elements

Subtopic

General Characteristics

Illustrate by taking examples of transition elements and non-transition elements that oxidation states of elements are largely based on electronic configuration.

Medium

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The element with an atomic number $26$ is

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Which of the following electronic configurations is associated with the highest stable oxidation state?

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The spin-only magnetic moment value of the ion among $Ti^{2+}$,$V^{2+}$,$Co^{3+}$,and $Cr^{2+}$ that acts as a strong oxidizing agent in aqueous solution is .......... $BM$ (nearest integer).
(Given atomic numbers: $Ti = 22, V = 23, Cr = 24, Co = 27$)

MediumJEE MAIN 2024

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Which of the following is the correct order for the theoretical magnetic moment?

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Assertion : Transition metals show variable valency. Reason : Transition metals have a large energy difference between the $ns^2$ and $(n-1)d$ electrons.

Similar Questions

Illustrate by taking examples of transition elements and non-transition elements that oxidation states of elements are largely based on electronic configuration.

The element with an atomic number $26$ is

Which of the following electronic configurations is associated with the highest stable oxidation state?

The spin-only magnetic moment value of the ion among $Ti^{2+}$,$V^{2+}$,$Co^{3+}$,and $Cr^{2+}$ that acts as a strong oxidizing agent in aqueous solution is .......... $BM$ (nearest integer).(Given atomic numbers: $Ti = 22, V = 23, Cr = 24, Co = 27$)

Which of the following is the correct order for the theoretical magnetic moment?

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Assertion : Transition metals show variable valency.
Reason : Transition metals have a large energy difference between the $ns^2$ and $(n-1)d$ electrons.

The spin-only magnetic moment value of the ion among $Ti^{2+}$,$V^{2+}$,$Co^{3+}$,and $Cr^{2+}$ that acts as a strong oxidizing agent in aqueous solution is .......... $BM$ (nearest integer).
(Given atomic numbers: $Ti = 22, V = 23, Cr = 24, Co = 27$)