what is the action of concentrated hydrochloric acid on gold and magnesium ?
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The magnesium reacts with the acid, producing visible bubbles of hydrogen gas. (Optional) If the flame of a butane fireplace lighter is held above the bursting bubbles, they will produce audible pops as the hydrogen ignites. ... Hydrochloric acid is a corrosive liquid. Hydrogen gas is explosive.✌☺✌♥️✌☺♥️✌☺♥️✌☺♥️✌☺♥️✌☺
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When acid react with highly active metal it realese hydrogen gas the reaction takes place is
2HCL + Mg -> MgCl2 + H2
Since gold is very less reactive metal so it doesn't take part in reaction with acid .For reaction with gold the aqua regia is used which is concentrated part of HCL and Sulphuric acid (H2So4).
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