Question

If 60% of a first order reaction was completed in
60 minutes, 50% of the same reaction would be
completed in aproximately
(a) 45 minutes (b) 60 minutes
(c) 40 minutes (d) 50 minutes
(log 4 = 0.60, log 5 = 0.69)

Answer 1

Heyaa♡♡

Correct option is - a) 45 minutes.

Explanation is in attachment.

Hope it helped you.

Answer 2

Answer :- Option A) ...