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A compound MX(2)has observed and normal ...

A compound `MX_(2)`has observed and normal molar masses `65.6 and 164`respectively .Calculated the apparent degree of ionization of `MX_(2)`:

A

`75%`

B

`85%`

C

`65%`

D

`25%`

Text Solution

Verified by Experts

The correct Answer is:
A
`i=("normal molar mass")/("Observed molar mass")`
`=(164)/(65.6)=2.5`
`alpha=(i-1)/(n-1),n=3`(number of ions)
`(2.5-1)/(3-1)=(1.5)/(2)=0.75`
`:.` percentage ionization of `MX_(2)`will be `75%`
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