1.

Assertion : The kinetics of the reaction - mA + nB + pC rarr m'X + n'Y + p'Z obeys the rate expression as - (dx)/(dt) = k[A]^(m) [B]^(n) Reason : The rate of reaction does not depend upon the concentration of C.

Answer»

If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reasonb is false
If both assertion and reason are false.

Solution :Rate expression `(dx)/(dt)=k[A]^(m)[B]^(n)` shows that the TOTAL order of reactions is `m+n+0=m+n` as the rate of reaction is INDEPENDENT of concentration of C, i.e., the order with RESPECT to C is zero. This is the reason that C does not figure in the rate expression.


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