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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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Knowledge Check

  • A compound contains 10^(2)% of phosphorous . If atomic mass of phosphorouus is 31, the moleular mass of the compound having one phosphorous atom per molecules is :-

    A
    31
    B
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    C
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    D
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  • Atomicity of white phosphorus is

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    4
    B
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    C
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    D
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    A
    `PO_2`
    B
    `P_2O_3`
    C
    `P_2O_5`
    D
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