Hydrochloric Acid: Properties and Reactions

KMnO4 reacts with di HCl and gives chlorine gas.
2KMnO₄ + 16 HCl ------>2KCl + 2MnCl₂ + 5Cl₂ +2H₂O                 

Silver Nitrate first reacts with HCl to give white ppt of silver chloride, this silver chloride soluble in excess of ammonium hydroxide to form diamminesiver chloride

It turns blue litmus into red which finally bleaches to white.

When Copper oxide is treated with concentrated hydrochloric acid no gas is evolved but a blue solution is obtained.

Hydrogen Chloride gas is collected by upward displacement of air.

Conc. H₂SO₄  is used as a drying agent for Hydrogen chloride gas because it does not react with HCl.

Hydrogen gas is evolved when dil HCl is added to Magnesium. Mg + 2HCl ---> MgCl₂ + H₂

Hydrogen sulphide gas is liberated on reacting Iron(II) Sulphide with dilute HCl.

MnO₂ and CuO are two black coloured oxidizing agents

Liquified HCl does not allow the electric current to pass through it, showing the non-Polar covalent bond nature of HCl.

HCl is not used as an anesthesia.

Hydrogen chloride gives white fumes of ammonium chloride with ammonia.

from acid + metal ==> salt + hydrogen

 Na₂S₂O₃  gives Sulphur with the dil HCl .

This is a test for hydrogen.

It is an acid, which turns litmus red and the chloride ion of hydrochloric acid gives white precipitate with silver nitrate solution.

Hydrogen sulphide gas smells like rotten eggs.

Manganese(IV)oxide,Potassium permanganate and Potassium dichromate as commonly known as Oxidizing agent because these are the subtances which bring the oxidation.