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The sulphur content of cystine is 26.7%....

The sulphur content of cystine is 26.7%. Give that cystine contains two sulphur atoms, molecular weight of cystine is approximately:

A

120

B

240

C

100

D

60

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic mass of sulphur = 32 amu `therefore` molecular mass of cystine = `(100)/(26.7)xx64=239.7=240` amu
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