Which one of the following is an example of Dobereiner's triad?
$L i, A l, C a$
$L i, K, N a$
$L i, N a, K$
$K, A l, C a$

Question

Which one of the following is an example of Dobereiner-s triad-Li - Al - CaLi - K - NaLi - Na - KK - Al - Ca

Toppr Admin · Accepted Answer

Li-Na-K is the example of Dobereineer-apos-s triad- Here- the average atomic weights of-xA0- Li and K equal the atomic weight of Na-Weight-xA0-of-xA0-Li-weight-xA0-of-xA0-K2 -7-392 -462 -23- weight of Na-Hence- option B is correct-

Which one of the following is an example of Dobereiner's triad?Li,Al,CaLi,K,NaLi,Na,KK,Al,Ca

Li,Na,K is the example of Dobereineer's triad. Here, the average atomic weights of Li and K equal the atomic weight of Na.Weight of Li+weight of K2 =7+392 =462 =23= weight of Na.Hence, option B is correct.

Which one of the following is an example of Dobereiner's triad?
$L i, A l, C a$
$L i, K, N a$
$L i, N a, K$
$K, A l, C a$

$L i, N a, K$ is the example of Dobereineer's triad. Here, the average atomic weights of $L i$ and $K$ equal the atomic weight of $N a$ .

$\frac{W e i g h t o f L i + w e i g h t o f K}{2}$ = $\frac{7 + 39}{2}$ = $\frac{46}{2}$ =23

= weight of $N a$ .
Hence, option B is correct.