A colourless crystalline salt, on being heated, gives a colourless gas with a pungent smell. On being passed through an AgNO3 solution, this gas forms a white precipitate insoluble in HNO3 but readily

Question

A colourless crystalline salt, on being heated, gives a colourless gas with a pungent smell. On being passed through an AgNO3 solution, this gas forms a white precipitate insoluble in HNO3 but readily soluble in an NH3 solution. Which of the following reaction can lead to the above observation ?

Prashant Kotian · Accepted Answer

Correct answer: A. MgCl2 undergoes partial hydrolysis on heating to release HCl gas (pungent smell). HCl reacts with AgNO3 to form AgCl (white ppt), which is soluble in NH3 forming [Ag(NH3)2]+.

💡 Solution & Explanation

Practice 22,000+ questions like this