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0.75 g platinic chloride of a mono-acidi...

0.75 g platinic chloride of a mono-acidic base on ignition gave 0.245 g platinum. The molar mass of the base is:

A

`75.0`

B

93.5

C

100

D

`80.0`

Text Solution

Verified by Experts

The correct Answer is:
B
`("Mass of "B_(2)H_(2)PtCl_(6))/(2B+410)=("Mass of Pt")/(195)`
`therefore (0.75)/(2B+410)=(0.245)/(195) therefore B=93.5`
Eq. mass of base = 93.5, since it is monoacidic. `therefore` Molar mass of base = `93.5xx1=93.5`
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