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AtoB first order reaction A is ooptical ...

`AtoB` first order reaction A is ooptical active and B is optically inactive. A series of experiment were conducted on a solution of A
`{:(,"Time",0,60 min,oo),(,"optical rotation",82^(@),77^(@),2^(@)):}`
assume some imurity is present calculate the otical rotation for 5 hours.)
(Given in 1.066=0.064, `e^(0.16)`=1.17)

A

60

B

30

C

20

D

120

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The correct Answer is:
A
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