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0.75 g platinic chloride, a monoacid bas...

0.75 g platinic chloride, a monoacid base on ignition gave 0.245 g playinum. The molecular weight of the base is

A

75

B

93.5

C

100

D

80

Text Solution

Verified by Experts

The correct Answer is:
B
`("Wt.of" B_(2)H_(2)PtCl_(6))/(2B + 410) = ("Wt.of Pt")/(195)`
`therefore (0.75)/(2B + 410) = (0.245)/(195) rArr B = 93.5`
Eq. wt. of base = 93.5, since it is monoacidic
`therefore ` Mol.wt of base ` = 93.5 xx 1 = 93.5`
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