Which of the following statements is not correct about order of a reaction

A. The order of a reaction can be a fractional number.

B. Order of a reaction is experimentally determined quantity.

C. The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a reaction.

D. The order of a reaction is the sum of the powers of molar concentration of the reactants in the rate law expression. 

This is a Fill in the blanks Type Question as classified in NCERT Exemplar

Ans: Correct option C

Option (c) is the only one of the four assertions that is incorrect. In rate law expression, the order of reaction is equal to the sum of the power of concentration of the reactants.

xA + yB→zC

r = k (A)^x (B)^y 

Order x + y

The order of the reactions can also be a fraction. In a balanced chemical equation, the order of reaction may or may not be equal to the total of the stoichiometric coefficients of the reactants.

<p>This is a Fill in the blanks Type Question as classified in NCERT Exemplar</p><p><strong>Ans:&nbsp;</strong>Correct option C</p><p>Option (c) is the only one of the four assertions that is incorrect. In rate law expression, the order of reaction is equal to the sum of the power of concentration of the reactants.</p><p><strong>xA + yB→zC</strong></p><p><strong>r = k (A)^x (B)^y&nbsp;</strong></p><p>Order <strong>x + y</strong></p><p>The order of the reactions can also be a fraction. In a balanced chemical equation, the order of reaction may or may not be equal to the total of the stoichiometric coefficients of the reactants.</p><div><div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1745906782phpESJxtr_480x360.jpeg" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1745906782phpESJxtr.jpeg" alt="" width="161" height="172"></picture></div></div>

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