Question

The rate of reaction between two reactants A and B decreases by a factor 4 if the concentration of reactant B is doubled. The order of this reaction with respect to B is -

• A. –1
• B. –2
• C. 2
• D. 1

Answer 1

Answer: (B)

–2

Answer 2

r = K[A]^m [B]ⁿ

$\frac{1}{4} = 2^{n}$

n = – 2