Manganese (IV) oxide, potassium permanganate, potassium dichromate are commonly called as:

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Oxidizing agents

Carbon dioxide gas evolves when HCl acid is added to:

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Carbon dioxide gas evolves when Hydrochloric acid is added to calcium carbonate.

Hydrogen chloride gas on thermal decomposition gives:

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Hydrogen chloride gas on thermal decomposition above 5000C dissociates into hydrogen and chlorine. 2HCl ® H2+ Cl2

HCl can be dried only by ____ .

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Since HCl gas is acidic in nature, it can be dried only over acidic dehydrating agent like concentrated sulphuric acid.

The ions which impart acidic properties to an aqueous solution of hydrogen chloride are:

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The presence of hydrogen ion in HCl imparts acidic properties to an aqueous solution of hydrochloric acid.

Large amount of impure HCl is produced as a byproduct in

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Large amounts of impure HCl have become available in recent years as a by product from the heavy organic chemical industry. When converting 1, 2-dichloroethane to vinyl chloride, in the manufacturing chlorinated ethanes and chlorinated fluorocarbons, HCl is produced ClCH2 - CH2Cl → Heat CH2 = CHCl + HCl

Hydrogen chloride gas on mixing with ammonia produces dense white fumes due to the formation of:

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Reaction: NH3 + HCl → NH4Cl

HCL gas cannot be dried either over quick lime (CaO) or phosphorus pentaoxide because ____ .

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HCl gas cannot be dried either over quick lime (CaO) or phosphorus pentaoxide because it reacts with these dehydrating agents.

Which of the following is not a physical property of hydrogen chloride?

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Physical properties of Hydrogen chloride It has pungent suffocating smell. It is highly soluble in water. The gas fumes in moist air. It is heavier than air.

Hydrogen chloride gas on dissolving in water produces:

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Hydrogen chloride gas on dissolving in water produces strong monobasic acid.

HCl acts as reducing agent because ____ .

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HCl acts as reducing agent because it can be oxidised to chlorine by strong oxidizing agents like manganese dioxide, potassium permanganate and potassium dichromate. MnO2 + 4HCl -------------> MnCl2 + 2H2O + Cl2

The products formed when ammonium hydroxide reacts with silver chloride solution are ____.

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When hydrochloric acid reacts with silver nitrate solution, it forms a white precipitate of silver chloride which is soluble in ammonium hydroxide due to the formation of a complex, [Ag(NH3)2]Cl. AgNO3 + HCl --> AgCl + HNO3 AgCl + 2NH4OH --> [Ag(NH3)2]Cl + 2H2O

The complete and balanced equation of the reaction 3Pt + 16H+ + 4NO3- + 18Cl---> 3[PtCl6]2- + 4NO + 8H2O is ____.

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HCl dissolves noble metals like gold and platinum due to the formation of their complex chlorides. Thus the complete and balanced equation of the reaction is: 3Pt + 16H+ + 4NO3- + 18Cl- --> 3[PtCl6]2- + 4NO + 8H2O

Chlorine gas evolves when HCl acid is added to:

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Chlorine gas evolves when HCl acid is added to manganese dioxide. MnO2 + 4HCl → MnCl2 + 2H2O + Cl2

Hydrogen chloride gas is collected by:

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Upward displacement of air. Since it is 1.28 times heavier than air it is collected by upward displacement of air.

The gas formed when sodium sulphide reacts with hydrogen chloride is ____ .

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The gas formed is hydrogen sulphide. HCl decomposes salts of weak acids like carbonates, bicarbonates, sulphides and sulphites. During these reactions, characteristic gases are evolved which are used to identify the acid radicals. The reaction is: - Na2S + 2HCl --> 2NaCl + H2S

Identify from the following which is not an oxidising agent.

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Al is a reducing agent.

Hydrogen chloride reacts with metals to form:

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Hydrogen chloride reacts with metals to form chlorides with the liberation of hydrogen gas.

Name the drying agent used for purifying hydrogen chloride gas.

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Conc. sulphuric acid is used as a drying agent for purifying hydrogen chloride gas.

Aqua regia is a mixture of:

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1 part of conc. nitric acid and 3 parts of conc. hydrochloric acid.

Name the gas obtained when rock salt reacts with conc. sulphuric acid.

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Hydrogen chloride gas

Hydrogen chloride gas gives white precipitate with:

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Silver nitrate and lead nitrate solution. Reaction: AgNO3 + HCl → AgCl + HNO3 Pb(NO3)2 + 2 HCl → PbCl2 + 2 HNO3

The gas formed when sodium sulphite reacts with HCl is ____ .

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HCl decomposes salts of weak acids which forms a characteristics gas. The gas formed when sodium sulphite reacts with HCl is sulphur dioxide. The reaction is as follows: Na2SO3 + 2HCl --> 2NaCl + H2O + SO2

The complete and balanced reaction of Na2S2O3 + HCl --> is ____.

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HCl decomposes salts of thiosulphates to form a characteristic gas which is used to identify the acid radicals. Na2S2O3 + 2HCl --> 2NaCl + S + H2O + SO2

Aqua regia releases nascent:

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HNO3 + HCl → NOCl + 2H2O + 2[Cl] Nascent chlorine

ICSE Class 10th Chemistry 7 - Study of Compounds - Hydrogen Chloride MCQs
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