Chemistry Quiz

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Match the chemical reactions with their respective results:

$NH4OH + HCl$ = Formation of ammonium chloride and dense white fumes $AgCl + 2NH4OH$ = Formation of curdy white precipitate soluble in excess of ammonium $Pb(NO3)2 + 2HCl$ = Formation of lead chloride, a white precipitate soluble in hot water but insoluble in cold water $MnO2 + 4HCl(conc.)$ = Formation of a greenish-yellow gas with a pungent suffocating smell

Match the substances with their reactions with hydrochloric acid:

Ammonium hydroxide = Produces dense white fumes of ammonium chloride Silver nitrate solution = Produces curdy white precipitate soluble in excess of ammonium Lead nitrate solution = Produces a white precipitate soluble in hot water but insoluble in cold water Manganese (IV) oxide = Produces a greenish-yellow gas with a pungent suffocating smell

Match the substances with their reactions with chlorine:

Moist blue litmus paper = Turns red and finally bleaches to white Moist starch iodide paper = Turns blue-black $HCI + HCIO + H2O$ = Decolourises chlorine $2KI + Cl2$ = Forms $2KCl + I2$

Match the chemical reactions with their products:

$NH4OH + HCl$ = Ammonium chloride and water $AgCl + 2NH4OH$ = $[Ag(NH3)2]Cl + H2O$ $Pb(NO3)2 + 2HCl$ = Lead chloride and nitric acid $MnO2 + 4HCl(conc.)$ = Manganese chloride, chlorine and water Signup and view all the answers

Match the industries with the use of hydrochloric acid:

Manufacture of dyes, drugs, paints = Preparation of aqua-regia Calico printing industry = Used in the process Tanning industry = Used in the process Hydrogen Chloride = Primary ingredient Signup and view all the answers

Match the following chemical reactions with their corresponding descriptions:

$H_2(g) + Cl_2(g) \rightarrow 2HCl(g)$ = Synthesis of Hydrogen chloride from its elements in the presence of diffused sunlight $NaCl + H_2SO_4(conc.) \rightarrow NaHSO_4 + HCl$ = Preparation of Hydrogen chloride in laboratory with sodium chloride and concentrated sulphuric acid $2NaCl + H_2SO_4(conc.) \rightarrow Na_2SO_4 + 2HCl$ = Reaction that occurs when the reaction mixture is heated beyond 200 degrees Celsius Signup and view all the answers

Match the following substances with their properties or uses:

Hydrogen Chloride Gas = First prepared by Glauber in 1648 and proved to be a compound of hydrogen and chlorine by Humphrey Dary in 1810 Sodium Chloride = Preferred over other metallic chlorides for the preparation of Hydrogen chloride gas Concentrated Sulphuric Acid = Used to dry Hydrogen chloride gas before collection Signup and view all the answers

Match the following procedures with their corresponding precautions:

Heating the reaction mixture for Hydrogen chloride gas preparation = The temperature should not exceed 200 degrees Celsius Passing Hydrogen chloride gas through concentrated sulphuric acid = This process dries the gas before collection Signup and view all the answers

Match the following substances with their resultant products:

Sodium chloride and concentrated sulphuric acid = Hydrogen chloride gas and Sodium bisulphate Sodium chloride and concentrated sulphuric acid heated beyond 200 degrees Celsius = Hydrogen chloride gas and Sodium sulphate Signup and view all the answers

Match the following substances with the description of their reactions:

Hydrogen and Chlorine = React in the presence of diffused sunlight to form Hydrogen chloride Sodium chloride and concentrated sulphuric acid = React to form Hydrogen chloride gas and Sodium bisulphate Signup and view all the answers

Match the following elements with their compound:

Hydrogen and Chlorine = Hydrogen Chloride Signup and view all the answers

Match the following scientists with their discoveries:

Glauber = First preparation of Hydrogen chloride gas Humphrey Dary = Proved that Hydrogen chloride gas is a compound of hydrogen and chlorine Signup and view all the answers

Match the following chemical reactions with the correct products:

$NaOH + HCl (dil)$ = Sodium chloride and water $Mg + 2HCl (dil)$ = Magnesium chloride and hydrogen $Fe + 2HCl (dil)$ = Ferrous chloride and hydrogen $2NaS + 2HCl (dil)$ = Sodium chloride and hydrogen sulphide Signup and view all the answers

Match the following chemical reactions with the substances reacted:

$Pb(NO_3)_2 + 2HCl (dil)$ = Lead nitrate and dilute hydrochloric acid $AgNO_3 + HCl (dil)$ = Silver nitrate and dilute hydrochloric acid $NaHS + HCl (dil)$ = Sodium bisulphide and dilute hydrochloric acid $Na_2S_2O_3 + 2HCl (dil)$ = Sodium thiosulphate and dilute hydrochloric acid Signup and view all the answers

Match the chemical reactions with their respective observations:

$Pb(NO_3)_2 + 2HCl (dil)$ = Formation of white precipitate of lead chloride $AgNO_3 + HCl (dil)$ = Formation of curdy white precipitate of silver chloride $NaHS + HCl (dil)$ = Production of rotten egg smell due to hydrogen sulphide $Na_2S_2O_3 + 2HCl (dil)$ = Formation of yellow turbidity due to sulphur Signup and view all the answers

Match the reactions with their types:

$NaOH + HCl (dil)$ = Neutralisation $Mg + 2HCl (dil)$ = Reaction with metals $Na_2S_2O_3 + 2HCl (dil)$ = Reaction with thiosulphates $Fe + 2HCl (dil)$ = Reaction with metals Signup and view all the answers

Match the chemical compounds with their respective colours:

Lead chloride = White Silver chloride = Curdy white Potassium dichromate = Orange Potassium permanganate = Purple Signup and view all the answers

Match the following chemical reactions with the gases evolved:

$Mg + 2HCl (dil)$ = Hydrogen $NaHS + HCl (dil)$ = Hydrogen sulphide $Na_2S_2O_3 + 2HCl (dil)$ = Sulphur dioxide $Pb(NO_3)_2 + 2HCl (dil)$ = Nitric acid Signup and view all the answers

Match the following chemical reactions with the respective changes observed:

$Pb(NO_3)_2 + 2HCl (dil)$ = Formation of white precipitate $AgNO_3 + HCl (dil)$ = Formation of curdy white precipitate $NaHS + HCl (dil)$ = Change of lead acetate solution from colourless to shining black $Na_2S_2O_3 + 2HCl (dil)$ = Formation of yellow turbidity Signup and view all the answers

Match the following chemical reactions with the correct descriptions:

$2P_2O_5 + 3HCl ightarrow POCI_3 + 3HPO_3$ = Reaction of phosphorous pentaoxide with hydrogen chloride $CaO + 2HCl ightarrow CaCl_2 + H_2O$ = Reaction of calcium oxide with hydrogen chloride $2HCl ightarrow H_2 + Cl_2$ = Thermal decomposition of hydrogen chloride $NH_3 + HCl ightarrow NH_4Cl$ = Reaction of hydrogen chloride with ammonia Signup and view all the answers

Match the following properties and processes with the correct descriptions:

Hydrogen chloride gas is heavier than air = The property that allows hydrogen chloride gas to extinguish a burning candle Hydrogen chloride gas is highly soluble in water = The property that enables the red fountain experiment Hydrogen chloride gas is neither combustible nor a supporter of combustion = The property that causes hydrogen chloride gas to extinguish a burning splinter Preparation of hydrochloric acid using funnel arrangement = The process that prevents the back suction of water and provides maximum area for the absorption of hydrogen chloride gas Signup and view all the answers

Match the following chemical reactions with the correct products:

$Mg + 2HCl ightarrow MgCl_2 + H_2$ = Magnesium chloride and hydrogen $Zn + 2HCl ightarrow ZnCl_2 + H_2$ = Zinc chloride and hydrogen $Fe + 2HCl ightarrow FeCl_2 + H_2$ = Iron chloride and hydrogen $Ca + 2HCl ightarrow CaCl_2 + H_2$ = Calcium chloride and hydrogen Signup and view all the answers

Match the following properties of hydrogen chloride gas with the correct descriptions:

Hydrogen chloride gas is a polar covalent compound = The property that allows hydrogen chloride gas to produce ions when dissolved in water Dry hydrogen chloride gas and liquified hydrogen chloride gas has no effect on litmus = The property that shows neutral (non-acidic) character of the dry gas Liquified hydrogen chloride gas does not allow the electric current to pass through it = The property that shows covalent nature of the gas Hydrogen chloride gas on dissolving in water produces strong monobasic acid (hydrochloric acid) = The property that allows the production of $H_3O^+$ and $Cl^-$ ions Signup and view all the answers

Match the following reactions of dilute hydrochloric acid with the correct descriptions:

$HCl(g) + H_2O ightarrow H_3O^+ + Cl^-$ = Reaction with water to produce hydronium and chloride ions $HCl(aq)$ reacts with indicators = Reaction that shows strongly acidic nature and produces characteristic colours with indicators $HCl(aq)$ reacts with metals above hydrogen in the metal activity series = Reaction that displaces hydrogen and produces metal chlorides $HCl(aq)$ is prepared by dissolving hydrogen chloride gas in water = Reaction that can lead to back suction if not controlled with a funnel arrangement Signup and view all the answers

Match the following substances with their reactions with hydrogen chloride gas:

Phosphorous pentaoxide = Reacts with hydrogen chloride to produce phosphorus oxychloride and phosphorus acid Calcium oxide = Reacts with hydrogen chloride to produce calcium chloride and water Ammonia = Reacts with hydrogen chloride to produce ammonium chloride Metals above hydrogen in the metal activity series = Displace hydrogen when heated with hydrogen chloride gas Signup and view all the answers

Match the following substances with their interactions with hydrogen chloride gas:

Water = Highly soluble in it, can be used in red fountain experiment Air = Hydrogen chloride gas is heavier than it, can extinguish a burning candle Burning splinter = Hydrogen chloride gas can extinguish it, as it is neither combustible nor a supporter of combustion Litmus = Dry and liquified hydrogen chloride gas has no effect on it, showing its neutral character Signup and view all the answers