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Which pair is different from the others?

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By Expert Faculty of Sri Chaitanya
a
Li-Mg
b
B-Si
c
Be-Al
d
Li-Na

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detailed solution

Correct option is A

Diagonal Li–Mg connection
Graphs of Li and Mg's relationship are diagonal. Because of this, they exhibit a number of similar characteristics.

Al, Na, and K, as well as Ca, belong to the same group.


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