A rubber polymer sample A is reacted with chromic acid solution and yields acetic acid solution. Compound A also gives positive Weber test. Which of the following is possibly A?

A rubber polymer sample A is reacted with chromic acid solution and yi

1.	A rubber polymer sample A is reacted with chromic acid solution and yields acetic acid solution. Compound A also gives positive Weber test. Which of the following is possibly A?
A.	1,4-polyisoprenes
B.	butyl rubber
C.	nitrile butadiene rubber
D.	all of the mentioned
Answer» B. butyl rubber

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A rubber polymer sample A is reacted with chromic acid solution and yields acetic acid solution. Compound A also gives positive Weber test. Which of the following is possibly A?

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