Two elements A and B have similar chemical properties. They don’t form solid hydrogen carbonates, but react with nitrogen to form nitrides. A and B, respectively, are : 3 3 2 (A) Na and Ca (B) Cs and

Question

Two elements A and B have similar chemical properties. They don’t form solid hydrogen carbonates, but react with nitrogen to form nitrides. A and B, respectively, are : 3 3 2

(A) Na and Ca
(B) Cs and Ba
(C) Na and Rb
(D) Li and Mg

Prashant Kotian · Accepted Answer

Correct answer: D) LI AND MG. LiHCO & Mg (HCO ) does not exist in solid form but both forms nitrides with nitrogen gas.

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