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Question

State the given statement is true or false.
Statement: Mercuric oxide is reduced by thermal decomposition.

A
True
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B
False
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Solution

The correct option is A True
Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds. A metal carbonate decomposes into a metal oxide and carbon dioxide gas.

2HgO(s)Δ2Hg(l)+O2(g)

Hence, the given statement is true.

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