Question

For first order reaction ,the ratio of times of 50%completion and 90%completion is
a.)3:10
b.)5:9
c.)9:5
d.)1:1
pls help and don't spam!!​

Answer 1

Answer:

hii

Good evening

I'm fine

hope u r fine too

bye...take care

Answer 2

b.)5:9

here is your answer

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