1.

Assertion.The bond enthalpy of C-H bondin CH_(4) is nearly 416 k J mol^(-1) Reason . First , second, third and fourth C-H bonds in CH_(4) have same bond enthalpy.

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If both A and R are TRUE,andR is the trueexplanation of A.
If both A and R are true,but R is not the true explanation of A.
If A is true, but R is false
If both A and R are false.

Answer :C


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