`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. 60B. 30C. 20D. 120

`AtoB` first order reaction A is ooptical active and B is optically in

1.	`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. 60B. 30C. 20D. 120
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