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The equivalent weight of a certain triva...

The equivalent weight of a certain trivalent element is 20. Molecular weight of its oxide is

A

`168`

B

`68`

C

`152`

D

`56`

Text Solution

Verified by Experts

The correct Answer is:
A
At mass of element `= 20xx3=60`
Formula of its oxide is `M_(2)O_(3)`
`:.` Molecular mass of its oxide
`= 2xx60+16xx3`
`= 120 + 48 = 168`
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Knowledge Check

  • If the equivalent weight of a trivalent metal is 32.7, the molecular weight of its chloride is

    A
    `68.2`
    B
    `103.7`
    C
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    D
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  • Equivalent weight of a bivalent metal is 37.2 . The molecular weight of its chloride is

    A
    (a)`412.2`
    B
    (b)`216`
    C
    (c )`145.4`
    D
    (d)`108.2`

  • The equivalent weight of a metal is 4.5 and the molecular weight of its chloride is 80. The atomic weight of the metal is

    A
    18
    B
    9
    C
    4.5
    D
    36

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