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Lewis Dot Structure

Assertion :He...

Question

Assertion :Heterolytic fission occurs readily in polar covalent bonds. Reason: Heterolytic fission involves breaking of bond in such a way that shared pair of electrons go with one atom.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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C

Assertion is correct but Reason is incorrect

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D

Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion $\Rightarrow$ Heterolytic fission is favoured when bonding atoms have electronegativity differences and the presence of polar solvents at low temperatures. Thus, occurs readily in polar covalent bonds.

Reason $\Rightarrow$ In polar covalent bond, shared pair of electron is displaced towards the more electronegative atom and hence in heterolytic fission, the electron pair is easily taken away by more electronegative atoms.

Hence, both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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