Assertion (A) : The valency of oxygen atom is 6.
Reason (R) : Oxygen needs to 2 more electron to complete its octet.

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Assertion (A) : The valency of oxygen atom is 6. Reason (R) : Oxygen needs to 2 more electron to complete its octet.

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Assertion (A) : The valency of oxygen atom is 6.
Reason (R) : Oxygen needs to 2 more electron to complete its octet.