Question

in a first order reaction A gives product 80% of the given sample of compound decomposes in 40min. what is the half time period of reaction?
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Answer 1

HEY MATE HERE IS YOUR ANSWER

20 min IT takes In half time reaction.

IN MY POINT OF VIEW:
how because in 40 min IT takes 80%. so In 20min IT takes 40%.

HOPE IT HELPS YOU MARK AS BRAINLIEST