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Chlorine has two isotope ""(17)Cl^(35)C...

Chlorine has two isotope `""_(17)Cl^(35)Cl^(35)` . The atomic weight of chlorine is 35.5 . In what ratio `Cl^(35)` and `Cl^(37)` are present in chlorine ?

A

`1:3`

B

`3:1`

C

`1:5`

D

`5:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`35.5=(35xx x+37xxy)/(x+y)`
`35.5 + 35.5y=35x+ 37y`
`35.5x - 35x =37y-35.5y`
`0.5 x = 1.5 y`
or `x:y=1.5:0.5`
or `x:y=3:1`
`therefore Cl^(35):Cl^(37)=3:1`.
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