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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

0.75

B

0.85

C

0.65

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
A
`x_(A) = (1)/(3), x_(B) = (2)/(3)`
`p = P_(A)^(@) + p_(B)^(@) x_(B)`
`= 150 xx (1)/(3) + 240 xx (2)/(3) = 50 + 160 = 210 mm`
`p_("exp.") lt p_("calculated")`
`:.` There is negative deviation from Raoult's law
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