Identify the electronic configuration of transition element.

Transition elements are those elements which have partially filled d-subshells in their elementary form. Therefore, the general electronic configuration of d-block element is $ ( n - 1) \, d^{ 1 - 10 } \, ns^{ 1 - 2} $

$ 1s^2, \, 2s^2 \, 2p^6, \, 3s^2, \, 3p^6, \, 4s^2$

$ 1s^2, \, 2s^2 \, 2p^6, \, 3s^2, \, 3p^6, \, 3d^2, \, 4s^2 $

$ 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 3d^{ 10}, \, 4s^2 \, 4p^2 $

$ 1s^2, \, 2s^2, \, 2p^6, \, 3s^2, \, 3p^6, \, 3d^{ 10}, \, 4s^2, \, 4p^3 $

Identify the electronic configuration of transition element.

$ 1s^2, \, 2s^2 \, 2p^6, \, 3s^2, \, 3p^6, \, 3d^2, \, 4s^2 $

$ 1s^2, \, 2s^2 \, 2p^6, \, 3s^2, \, 3p^6, \, 4s^2$

$ 1s^2, \, 2s^2 \, 2p^6, \, 3s^2, \, 3p^6, \, 3d^2, \, 4s^2 $

$ 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 3d^{ 10}, \, 4s^2 \, 4p^2 $

$ 1s^2, \, 2s^2, \, 2p^6, \, 3s^2, \, 3p^6, \, 3d^{ 10}, \, 4s^2, \, 4p^3 $

Identify the electronic configuration of transitio

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Haloalkanes and Haloarenes - Classification

Classification of Haloalkanes and Haloarenes are as follows:

Haloalkanes and Haloarenes are Classified on the Basis of the Number of Halogen Atoms:

These are further classified as mono, di, or polyhalogen (tri-,tetra-, etc.) compounds depending on whether they contain one, two or more halogen atoms in their structures. For example;

Monohaloalkane
Dihaloalkane
Trihaloalkane

Haloalkanes and Haloarenes are Classified on Compounds Containing sp³ C—X Bond (X= F, Cl, Br, I)

This class includes:

Alkyl halides or haloalkanes (R—X)
Allylic halides
Benzylic halides

Haloalkanes and Haloarenes are Classified on Compounds Containing sp² C—X Bond

This class includes:

Vinylic halides
Aryl halides

Identify the electronic configuration of transition element.

The Correct Option is B

Solution and Explanation

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Haloalkanes and Haloarenes - Classification

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