When mercury is heated with aqua regia then which compound is formed?

H g (N O_{3})_{2}

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H g C l_{2}

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H g (N O_{2})_{2}

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H g_{2} C l_{2}

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Solution

The correct option is B $H g C l_{2}$
Mercury is soluble in aqua regia and it forms $H g C l_{2}$
$3 H g + 2 H N O_{3} + 6 H C l \to 3 H g C l_{2} + 2 N O + 4 H_{2} O$

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