Match the rate law given in column-I with the the dimensions of rate constants given in column-II and mark the appropriate choice.
Column-I | Column-II | ||
(A) | Rate | (P) | |
(B) | Rate | (Q) | |
(C) | Rate | (R) | |
(D) | Rate | (S) |
Text Solution
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Rate 
Order 0
Units of 
Rate 
Order 
Units of 
Rate 
Order 3/2
Rate 
Order 2
Units of 
But check options: 
(1st order), 
(0th order)
WAIT: Rate 
units should be 
But ( Q ) is already used by .
Let's check again options:
Given 
.
Only 
fits second-order.
Thus → (Q), but this is not in any option → check carefully.
Actually Column-II given only one 
, so and cannot both be second-order.
But is definitely second-order; is also second-order → contradiction?
Let's re-read :
Rate 
Yes, second order.
So both B and D match Q?
But options suggest matches (R) 
.
That would mean first-order, but exponent is 2 !
Correct option must match all others correctly → only works:
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