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Diagonal Relationship (Group 1)

An orange sol...

Question

An orange solid (A) on heating gave a green residue (B), a colourless gas (C) and water vapours. The dry gas (C) on passing overheated Mg gave a white solid (D). (D) on reaction with water gave a gas (E) which formed dense white fumes with HCl.

Write the mass number of gas C(gms).

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Solution

$\begin{matrix} A is a binary salt of univalent metal. A converts S to sulphate thus, A contains oxygen . Since A is a binary salt thus A can be M O_{2} with 0^{2 -} anion. \end{matrix}$

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