Concise Chemistry Class 9>The Periodic Table>Dobereiner's Triads

Dobereiner's Triads

Author:S P Singh

9th ICSE

IMPORTANT

Important Questions on Dobereiner's Triads

EASY

IMPORTANT

Concise Chemistry Class 9>The Periodic Table>Dobereiner's Triads> Q 1

Did Dobereiner's triads also exist in the columns of Newland's Octaves? Compare and find out.

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IMPORTANT

Concise Chemistry Class 9>The Periodic Table>Dobereiner's Triads> Q 2

Why was Dobereiner's triad discarded?

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IMPORTANT

Concise Chemistry Class 9>The Periodic Table>Dobereiner's Triads> Q 3

$A, B$ and $C$ are the elements of a Dobereiner's triad. If the atomic mass of $A$ is $7$ and that of $C$ is $39$ , what should be the atomic mass of $B$ ?