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Byju's Answer
Standard XII
Chemistry
Characteristics of Chemical Equilibrium
A chemical re...
Question
A chemical reaction A+2B
→
A
B
2
follows in two steps:
A+B
→
AB (slow)
AB+B
→
A
B
2
(fast)
Then the order of the reaction is:
A
3
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B
2
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C
1
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D
0
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Solution
The correct option is
B
2
Slowest reaction will be rate-determining step:
A
+
B
→
A
B
[
s
l
o
w
]
Rate of reaction
=
k
[
A
]
[
B
]
o
r
d
e
r
=
1
+
1
=
2
Order of the reaction can be known from the no. of reactants involved in rate-determining step (slow step).
Hence, option B is correct.
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0
Similar questions
Q.
Study the mechanism of the following reversible reaction carefully
2
A
+
2
B
⇌
A
2
B
2
Mechanism
A
+
B
K
f
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A
B
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(slowest step)
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Q.
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