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@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.,rotate
in 15 min, B' = B0/2
A'= A0/8
since A0 = 4 B0
A' = B'
moral of story, working backwards in some mcqs saves time.
You can do the same thing using math, but not the smartest way since it may take signifcant more effort
https://byjus.com/question-answer/two-substances-a-t-dfrac-1-2-5-text-min-and-b-t-dfrac-1-1/
Two substances A t 1=5 min and B t 1=15 min are taken in such a way...
Two substances A t 1=5 min and B t 1=15 min are taken in such a way that initially [ A ]=4[ B ]. The time after which both the 2 2concentration will be equal is: Assume that reaction is first orderA. 5 minB. 15 minC. Concentration can never be equalD. 20 min
Wow smart way
+solved @iTeachChem
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