Assertion :For the elementary reaction, $a A (g) + b B (g) ⟶$ Product. The order of the reaction is equal to $(a + b)$ . Reason: Rate of reaction $= k {[A]}^{a} {[B]}^{b}$ .

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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Assertion is incorrect, but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Net reaction yields the rate law
$ϑ = k [A]^{a} [B]^{b}$ [General rate law]
So, order $= (a + b)$

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Similar questions

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :For the elementary reaction, aA(g)+bB(g)⟶ Product. The order of the reaction is equal to (a+b). Reason: Rate of reaction =k[A]a[B]b.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionNet reaction yields the rate lawϑ=k[A]a[B]b [General rate law]So, order =(a+b)

Assertion :For the elementary reaction, $a A (g) + b B (g) ⟶$ Product. The order of the reaction is equal to $(a + b)$ . Reason: Rate of reaction $= k {[A]}^{a} {[B]}^{b}$ .

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Net reaction yields the rate law
$ϑ = k [A]^{a} [B]^{b}$ [General rate law]
So, order $= (a + b)$