🛠️ JEE🧪 Chemistry

If \( 75 \% \) of a first order reaction was completed in 90 minutes, \( 60 \% \) of the same reaction would be complete…

Q1

If \( 75 \% \) of a first order reaction was completed in 90 minutes, \( 60 \% \) of the same reaction would be completed in approximately how many minutes?

(Take : \( \log 2=0.30 ; \log 2.5=0.40 \) )

[JEE Main 2020, 4 Sep (Shift 1)]

a

60

b

70

c

80

d

90

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