Assertion :During covalent bonding the electronegativity difference between two atoms is greater than $1.7$ Reason: Covalent bond is formed by sharing of electrons between atoms that have same size

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

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

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
If electronegativity difference between two atoms is greater than 1.7 then bond is more ionic nature than covlent nature so it is said to be ionic bond.

Covalent bond is formed by sharing of electrons between atoms that have any size not only same size.

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Assertion :During covalent bonding the electronegativity difference between two atoms is greater than 1.7 Reason: Covalent bond is formed by sharing of electrons between atoms that have same size

Assertion :During covalent bonding the electronegativity difference between two atoms is greater than $1.7$ Reason: Covalent bond is formed by sharing of electrons between atoms that have same size