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Cl, Br, I , if this is Dobereiner's tria...

Cl, Br, I , if this is Dobereiner's triad and the atomic masses of Cl and I are 35.5 and 127 respectively the atomic mass of Br is

A

162.5

B

91.5

C

81.25

D

45.625

Text Solution

Verified by Experts

The correct Answer is:
C
According to Dobereneir's triad the atomic mass of Br will be average of the atomic masses ofCI & I
`=(35.5+127)/(2)=81.25`
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