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Cl, Br, I , if this is Dobereiner's tria...

Cl, Br, I , if this is Dobereiner's triad and the atomic masses of Cl and I are 35.5 and 127 respectively the atomic mass of Br is

A

162.5

B

91.5

C

81.25

D

45.625

Text Solution

Verified by Experts

The correct Answer is:
C
According to Dobereneir's triad the atomic mass of Br will be average of the atomic masses ofCI & I
`=(35.5+127)/(2)=81.25`
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Knowledge Check

  • Cl, Br, I, if this is a Dobereiner's triad and the atomic masses of Cl and I are 35.5 and 127 respectively the atomic mass of Br is

    A
    `162.5`
    B
    `91.5`
    C
    `81.25`
    D
    `45.625`

  • Three elements X,Y,Z are following Dobereiner's Triad rule. If the atomic weight of X and Y are 10 and 26 respectively, then atomic weight of Z will be:

    A
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    B
    40
    C
    42
    D
    18

  • The atomic masses of Li and K are 7 and 39, respectively. According to law of triads the atomic mass of Na will be

    A
    23
    B
    32
    C
    46
    D
    64

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