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NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice

Mercury on heating with aqua-regia gives :

Options

  1. AHg NO 3 2
  2. BHgCl 2
  3. CHg(NO 2 ) 2
  4. DHg 2 Cl 2

Correct answer

B. HgCl 2

Step-by-step solution

Aqua regia is a mtextxture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3 3 H g + 2 H N O 3 + 6 H C l → 3 H g C l 2 + 2 N O + 4 H 2 O

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