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An oxide of a bivalent metal contains 40...

An oxide of a bivalent metal contains 40%, by mass, of oxygen. The atomic mass of the metal is

A

12

B

24

C

60

D

40

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • An oxide of a metal (M) contains 40% by mass of oxygen. Metal (M) has atomic mass of 24. The empirical formula of the oxide is-

    A
    `M_(2)O`
    B
    MO
    C
    `M_(2)O_(3)`
    D
    `M_(3)O_(4)`

  • A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is

    A
    168
    B
    192
    C
    188
    D
    182

  • A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is

    A
    `168`
    B
    `192`
    C
    `188`
    D
    `182`

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