1.

The main product obtained when a solution of sodium carbonate reacts with mercuric chloride is

Answer»

`Hg(OH)_(2)`
`HgCO_(3).HgO`
`HgCO_(3)`
`HgCO_(3).Hg(OH)_(2)`.

Solution :Mercuric chloride when HEATED with sodium carbonate solution, a yellow precipitate of mercuric oxide is formed.
`HgCl_(2)+Na_(2)CO_(3)toHgO+2NaCl+CO_(2)`


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