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Question: Answered & Verified by Expert
A reaction between substance A and B is represented as

A+BC

Observations on the rate of this reaction are obtained as



Order of reaction will respect to A and B respectively are :-
ChemistryChemical KineticsJEE Main
Options:
  • A 1, 2
  • B 1, 1
  • C 2, 1
  • D 2, 2
Solution:
1164 Upvotes Verified Answer
The correct answer is: 1, 2
r=k[A]x[B]y
5× 10 3 =k(0 .1) 2 (1) y ...(1)
2× 10 2 =k(0 .1) 2 (2) y ...(2)
equation 1÷2
0.1 0.1 x 1 2 y = 5×10 –3 2×10 –2
12y=14
y=2
2.5× 10 3 =k(0 .05) x (1) y ...(3)
equation 1÷3
0.1 0.05 x 1 1 y = 5×10 –3 2 .5×10 –3
10050x=2
x=1
Order of reaction will respect to A and B respectively are 1 and 2

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