Hydrogen Chloride Archives - Page 3 Of 4

Hydrogen chloride gas being highly soluble in water is dried by :
(a) Anhydrous calcium chloride
(b) Phosphorous pentaoxide
(c) Quick lime
(d) Conc. sulphuric acid.

(d) Concentrated sulphuric acid. Reason — Drying agent used for drying should only remove the moisture and not react with it, hence, conc. sulphuric acid is used as the drying agent.

Name two gases which can be used in the study of the fountain experiment. State the common property demonstrated by the fountain experiment ?

Dry hydrogen chloride gas (HCl) and Ammonia (NH3) gas can be used in the study of the fountain experiment. High solubility of HCl gas in water is the common property demonstrated…

How would you distinguish between dilute HCl and dilute HNO3, by addition of only one solution.

When silver nitrate soln. is added to dil. HCl, curdy white ppt. of silver chloride is formed. Whereas, there is no reaction when silver nitrate soln. is added to dil.…

(i) State the salt and the acid, used in the laboratory preparation of hydrogen chloride.
(ii) Give the equation for the preparation.
(iii) State a method to prove that the gas jar used for the collection of HCl gas is filled with hydrogen chloride.
(iv) Observing the method of gas collection, state what you can tell about the density of hydrogen chloride.

(i) Salt — Sodium Chloride [NaCl], Acid — Sulphuric acid [H2SO4] (ii) NaCl + H2SO4 (iii) A glass rod dipped in NH4OH soln. is brought near the mouth of the…

State your observation when : A glass rod dipped in NH4OH soln. is brought near an open bottle containing conc. HCl

Dense white fumes of ammonium chloride are formed when a glass rod dipped in NH4OH soln. is brought near an open bottle containing conc. HCl NH3 + HCl → NH4Cl

Aqua regia is a mixture of :
(a) Dilute hydrochloric and conc. nitric acid
(b) Conc. hydrochloric and dilute nitric acid
(c) One part of conc. hydrochloric acid and 3 parts of conc. nitric acid.
(d) 3 parts of conc. hydrochloric acid and 1 part of conc. nitric acid

(d) 3 parts of conc. hydrochloric acid and 1 part of conc. nitric acid

Correct the statement: HCl acid is prepared in the lab. by passing hydrogen chloride directly through water.

HCl acid is prepared in the lab. by passing hydrogen chloride gas in water using a special funnel arrangement.

Write a balanced equation for each of the following :
(i) Red lead is warmed with concentrated hydrochloric acid.
(ii) Magnesium metal is treated with dilute hydrochloric acid.

(i) Pb3O4 + 8HCl 3PbCl2 + 4H2O + Cl2 (ii) Mg + 2HCl ⟶ MgCl2 + H2

Match each substance A to E listed below with the appropriate description given below :
[A] Sulphur
[B] Silver chloride
[C] Hydrogen chloride
[D] Copper [II] Sulphate
[E] Graphite.
(i) A covalent compound which behaves like an ionic compound in aqueous solution.
(ii) A compound which is insoluble in cold water but soluble in excess of ammonia solution.

(i) [C] Hydrogen chloride (ii) [B] Silver chloride

Name the gas evolved – The gas produced by the action of concentrated sulphuric acid on sodium chloride.

Hydrogen chloride (HCl) Explanation NaCl + H2SO4 NaHSO4 + HCl

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