Published by:
CGP EDU Academic Team
Published on: August 14, 2026
For a reaction A + B → C + D, if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is:
Text Solution
Verified by ExpertsThe correct answer is:
C
Rate = k[A] α [Β] β ...(i)
2 × rate = k[2A] α [B] β ...(ii)
3 × rate = k[A] α [9B] β ...(iii)
From eqs (i) and (ii), α = 1
From eqs (i) and (iii), β = ½
Order = α + β = 1 + 
= 
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