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A compound contains 10^(-2)% of phosphor...

A compound contains `10^(-2)%` of phosphorus. If atomic mass of phosphorus is `31`, the molar mass of the compound having one phosphorus atom per molecule is:

A

`31`

B

`31 xx 10^(2)`

C

`31 xx 10^(4)`

D

`31 xx 10^(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`10^(-2) P` then mol.wt.of compound `= 100`
`31 g P` then mol.wt.of compound
`=(100xx31)/(10^(-2))=31xx10^(4)`
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