87 + Interview Questions in AMMONIA IN GENERAL AWARENESS

1.	Write an equation for the reaction of chlorine with excess of ammonia.
Answer» 8NH₃ + 3Cl₂ → 6NH₄Cl + N₂

Discussion

2.	Name the ion other than ammonium ion formed when ammonia dissolves in water.
Answer» Hydroxyl ion (NH₃ + H₂O → NH⁺₄ + OH^–)

Discussion

3.	A metal ‘X’ has valency 2 and a non-metal ‘Y’ has a valency 3. If ‘Y ’ is a diatomic gas, write an equation for the direct combination of X and Y to from a compound.
Answer» The equation for the direct combination of X and Y to form a compound is 3X + 2Y + Heat → X₃Y₂

3.

A metal ‘X’ has valency 2 and a non-metal ‘Y’ has a valency 3. If ‘Y ’ is a diatomic gas, write an equation for the direct combination of X and Y to from a compound.

Answer»

The equation for the direct combination of X and Y to form a compound is

3X + 2Y + Heat → X₃Y₂

Discussion

4.	State one relevant observation — Ammonia gas is burnt in an atmosphere of excess oxygen.
Answer» Ammonia gas bums to form nitrogen gas and steamy fumes of water.

Discussion

5.	Name the other ion formed when ammonia dissolves in water. Give one test that can be used to detect the presence of the ion produced.
Answer» (i) When Ammonia dissolve in water. NH₃ + H₂O → NH₄OH NH₄OH ⇋ NH₄⁺ + OH^- ions formed are ammonium and hydroxyl. (ii)Test - NH₄OH + HCl or Cl₂ → NH₄Cl(White fumes) + H₂O

5.

Name the other ion formed when ammonia dissolves in water. Give one test that can be used to detect the presence of the ion produced.

Answer»

(i) When Ammonia dissolve in water.

NH₃ + H₂O → NH₄OH

NH₄OH ⇋ NH₄⁺ + OH^-

ions formed are ammonium and hydroxyl.

(ii)Test - NH₄OH + HCl or Cl₂ → NH₄Cl(White fumes) + H₂O

Discussion

6.	State the conditions required for : Catalytic oxidation of ammonia to nitric oxide.
Answer» Catalytic oxidation of ammonia to nitric oxide. 4NH₃ + 5O₂ + Pt.800°C → 6H₂O + 4NO↑ Conditions for catalytic oxidation of ammonia to nitric oxide : Platinum catalyst and 800°C temperature.

6.

State the conditions required for : Catalytic oxidation of ammonia to nitric oxide.

Answer»

Catalytic oxidation of ammonia to nitric oxide.

4NH₃ + 5O₂ + Pt.800°C → 6H₂O + 4NO↑

Conditions for catalytic oxidation of ammonia to nitric oxide : Platinum catalyst and 800°C temperature.

Discussion

7.	Give an equation for the burning of ammonia in oxygen. State the observation seen.
Answer» Ammonia bums in the atmosphere of oxygen with a pale blue flame, forming nitrogen gas and water vapour. 4NH₃ + 3O₂ + burning → 2N₂ + 6H₂O

7.

Give an equation for the burning of ammonia in oxygen. State the observation seen.

Answer»

Ammonia bums in the atmosphere of oxygen with a pale blue flame, forming nitrogen gas and water vapour.

4NH₃ + 3O₂ + burning → 2N₂ + 6H₂O

Discussion

8.

Copy and complete the following table relating to important industrial process:Name of the processTemperatureCatalyst Equation for the catalyzed reactionHaber’s process

Answer»

Name of the process	Temperature	Catalyst	Equation for the catalyzed reaction
Haber’s	450° - 500°C	Finely divide iron	N₂ + 3H₂ →2NH₃ + heat

Discussion

9.

Copy and complete the following table relating to important industrial process :Name of the processTemperatureCatalystEquation for the catalyzed reactionHaber's process

Answer»

Name of the process	Temperature	Catalyst	Equation for the catalyzed reaction
Haber's process	450°C - 500°C	Fe + Mo	N₂ + 3H₂ → 2NH₃

Discussion

10.	Give reasons for the observation seen during catalytic oxidation of ammonia.
Answer» The colourless nitric oxide formed undergoes further oxidation to give reddish brown vapours of nitrogen oxide. The platinum(catalyst) continues to emit a reddish glow even after the heating is discontinued since the catalytic oxidation of ammonia is an exothermic reaction.

10.

Give reasons for the observation seen during catalytic oxidation of ammonia.

Answer»

The colourless nitric oxide formed undergoes further oxidation to give reddish brown vapours of nitrogen oxide.

The platinum(catalyst) continues to emit a reddish glow even after the heating is discontinued since the catalytic oxidation of ammonia is an exothermic reaction.

Discussion

11.	State your observation when – Water is added to the product formed, when aluminium is burnt in a jar of nitrogen gas.
Answer» Pungent smelling and alkaline gas (NH₃ ) is evolved. 2AI + N₂ → 2AIN[Burning of aluminium] AIN + 3HO → AI (OH)₃ + NH₃↑[Pungent gas]

11.

State your observation when – Water is added to the product formed, when aluminium is burnt in a jar of nitrogen gas.

Answer»

Pungent smelling and alkaline gas (NH₃ ) is evolved.

2AI + N₂ → 2AIN[Burning of aluminium]

AIN + 3HO → AI (OH)₃ + NH₃↑[Pungent gas]

Discussion

12.	State your observation when – in the absence of a catalyst ammonia gas is burnt in an atmosphere of oxygen.
Answer» Greenish yellow flame is observed.

Discussion

13.	Give the equation for the reaction : ammonium chloride is heated with sodium hydroxide.
Answer» NH₄Cl + NaOH → NaCl + NH₃ + H₂O

Discussion

14.	Complete the blanks (a) to (e) in the passage given, using the following words. (Ammonium, reddish brown, hydroxyl, nitrogen dioxide, ammonia, dirty green, alkaline, acidic) in the presence of a catalyst, nitrogen and hydrogen combine to give(a) _____ gas. When the same gas is passed through water, it forms a solution which will be _____ (b) in nature, and will contain the ions (c) _____ and (d) _____ (e) _____ coloured precipitate of iron [II] hydroxide is formed when the above solution is added to iron [II] sulphate solution, sssssss
Answer» (a) Ammonia (b) Alkaline (c) Ammonium (d) Hydroxyl (e) Dirty green

14.

Complete the blanks (a) to (e) in the passage given, using the following words. (Ammonium, reddish brown, hydroxyl, nitrogen dioxide, ammonia, dirty green, alkaline, acidic) in the presence of a catalyst, nitrogen and hydrogen combine to give(a) ___ gas. When the same gas is passed through water, it forms a solution which will be _ (b) in nature, and will contain the ions (c) _ and (d) _ (e) ___ coloured precipitate of iron [II] hydroxide is formed when the above solution is added to iron [II] sulphate solution, sssssss

Answer»

(a) Ammonia

(b) Alkaline

(c) Ammonium

(d) Hydroxyl

(e) Dirty green

Discussion

15.	Certain blanks spaces are left in the following tables as C, D & E. Identify each of them.Lab preparation of Reactants usedProducts formedDrying agentMethod of collectionNH3 gasCMG(OH)2 NH3DE
Answer» C : Reactants are Magnesium nitride(Mg₃N₂ ) and water(H₂O). D : Drying agent is anhydrous calcium oxide (Quick lime). E : NH₃ gas is collected by the downward displacement of air.

15.

Certain blanks spaces are left in the following tables as C, D & E. Identify each of them.Lab preparation of Reactants usedProducts formedDrying agentMethod of collectionNH3 gasCMG(OH)2 NH3DE

Answer»

C : Reactants are Magnesium nitride(Mg₃N₂ ) and water(H₂O).

D : Drying agent is anhydrous calcium oxide (Quick lime).

E : NH₃ gas is collected by the downward displacement of air.

Discussion

16.	Write the balanced chemical equation for each of the following –1. Reaction of ammonia with heated copper oxide.2. Laboratory preparation of ammonia from ammonium chloride.
Answer» (i) 3CuO + 2NH₃ + Heat → 3Cu + 3H₂O + N₂(g) (ii) 2NH₄Cl + Ca(OH₂) + CaO → CaCl₂ + 2H₂O + 2NH₃

16.

Write the balanced chemical equation for each of the following –1. Reaction of ammonia with heated copper oxide.2. Laboratory preparation of ammonia from ammonium chloride.

Answer»

(i) 3CuO + 2NH₃ + Heat → 3Cu + 3H₂O + N₂(g)

(ii) 2NH₄Cl + Ca(OH₂) + CaO → CaCl₂ + 2H₂O + 2NH₃

Discussion

17.	Name two gases you have which can be used to study the fountain experiment. State the common property demonstrated by the fountain experiment ?
Answer» Two gases which are used to study the fountain experiment are Hydrogen chloride gas (HCl) and Ammonia (NH₃) The common property of these two gases demonstrated by the fountain experiment is the solubility of gases

Discussion

18.	State one relevant observation for the following reaction – Burning of ammonia in air.
Answer» Ammonia bums with a yellowish green flame.

Discussion

19.	Write a relevant equation, to show that ammonia can act as a reducing agent.
Answer» 2NH₃ + 3Cl₂ → N₂ + 6HCl

Discussion

20.	Name an industrial process which involves ammonia, oxygen and a catalyst as its starting reactants.
Answer» The industrial process is called Ostwald’s process for preparing nitric acid.

Discussion

21.	Write a balanced equation for the following reaction :Ammonium sulphate from ammonia and dilute sulphuric acid.
Answer» 2NH₃(Ammonia) + H₂SO₄(Sulphuric acid) → (NH₄)₂SO₄(Ammonium sulphate)

Discussion

22.	Give equation for – reaction in which NH3 is oxidized by :1. a metal oxide ;2. a gas which is not oxygen.
Answer» (i) 2NH +3CuO → 3Cu + 3H₂ + N₂(g) (ii) 8NH₃ + 3Cl₂ → 6NH₄Cl + N₂

22.

Give equation for – reaction in which NH3 is oxidized by :1. a metal oxide ;2. a gas which is not oxygen.

Answer»

(i) 2NH +3CuO → 3Cu + 3H₂ + N₂(g)

(ii) 8NH₃ + 3Cl₂ → 6NH₄Cl + N₂

Discussion

23.	Name an ammonium salt which is a constituent of(a) smelling salts(b) dry cells. Give reasons for the use of the named ammonium salt for the same.
Answer» (a) Smelling salts : Ammonium carbonate, (NH₄)₂CO₃ is used as smelling salt. It is an unstable white solid decomposes to give pungent smelling NH₃ gas. (NH₄)₂CO₃ → 2NH₃ + CO₂ + H₂O The pungent smelling NH₃ gas revives a fainted person. (NH₄)₂CO₃ is always kept in a tightly closed container to prevent it from decomposition. (b) Dry cells : Ammonium chloride(NH₄Cl) is used in dry cells. It oxidises Zn to Zn²⁺ ions. The electrons so produced constitute the electric current.

23.

Name an ammonium salt which is a constituent of(a) smelling salts(b) dry cells. Give reasons for the use of the named ammonium salt for the same.

Answer»

(a) Smelling salts : Ammonium carbonate, (NH₄)₂CO₃ is used as smelling salt. It is an unstable white solid decomposes to give pungent smelling NH₃ gas.

(NH₄)₂CO₃ → 2NH₃ + CO₂ + H₂O

The pungent smelling NH₃ gas revives a fainted person. (NH₄)₂CO₃ is always kept in a tightly closed container to prevent it from decomposition.

(b) Dry cells : Ammonium chloride(NH₄Cl) is used in dry cells. It oxidises Zn to Zn²⁺ ions. The electrons so produced constitute the electric current.

Discussion

24.	State the purpose of liquefying the ammonia produced in the process.
Answer» By liquefying ammonia, it can be easily seperated from unreacted N₂ and H₂ gases.

Discussion

25.	Write the equation for the reaction in the Haber’s process that forms ammonia.
Answer» N₂ + 3H₂ ⇋ 2NH₃

Discussion

26.	Give one use with reason of1. an aqueous solution of NH32. liquefied NH3
Answer» (i) Use of an Aqueous solution of Ammonia (NH₃) : An aqueous solution of NH₃ is called liquor ammonia. Being a base, it can easily emulsify oils and fats. Therefore, it is used for removing oil and fat stains from clothes carpets, upholstery etc. It is also used for cleaning window panes, porcelain articles etc. (ii) Use of Liqueified Ammonia (NH₃) : Liquid ammonia is used as refrigerant i.e. for producing low temperature. This is due to the following reasons: (a) It is highly volatile. (b) It can be easily liquefied under high pressure and low temperature. (c) It’s latent heat of evaporation is very high.

26.

Give one use with reason of1. an aqueous solution of NH32. liquefied NH3

Answer»

(i) Use of an Aqueous solution of Ammonia (NH₃) : An aqueous solution of NH₃ is called liquor ammonia. Being a base, it can easily emulsify oils and fats. Therefore, it is used for removing oil and fat stains from clothes carpets, upholstery etc. It is also used for cleaning window panes, porcelain articles etc.

(ii) Use of Liqueified Ammonia (NH₃) : Liquid ammonia is used as refrigerant i.e. for producing low temperature.

This is due to the following reasons:

(a) It is highly volatile.

(b) It can be easily liquefied under high pressure and low temperature.

(c) It’s latent heat of evaporation is very high.

Discussion

27.	State what are chlorofluorocarbons and give their use. Give a reason why they are ozone depleting. State a suitable alternative to chlorofluorocarbons which are non-ozone depleting.
Answer» Chlorofluorocarbons (CFC’s) are compounds of carbon with chlorine or fluorine. CFC are chemicals which like liquefied ammonia gas are used in refrigeration gas. They are also used as coolants in refrigeration and A/c Plants and aerosol sprays and cleansing agents. These CFC’s deplete ozone layer and also contribute to global warming. Thus these CFC’s are harmful to life. The CFC’s are decomposed by ultraviolet rays coming from sun to produce highly reactive chlorine atoms i.e. free Cl radicals. Suitable alternatives to chloroflurocarbons which are not depleting ozone are : HCFC – Hydrochloroflurocarbons; and HFC – 125 Hydrochloroflurocarbons ; which act as a substitute for CFCs, which are non-ozone depleting.

27.

State what are chlorofluorocarbons and give their use. Give a reason why they are ozone depleting. State a suitable alternative to chlorofluorocarbons which are non-ozone depleting.

Answer»

Chlorofluorocarbons (CFC’s) are compounds of carbon with chlorine or fluorine. CFC are chemicals which like liquefied ammonia gas are used in refrigeration gas. They are also used as coolants in refrigeration and A/c Plants and aerosol sprays and cleansing agents. These CFC’s deplete ozone layer and also contribute to global warming. Thus these CFC’s are harmful to life. The CFC’s are decomposed by ultraviolet rays coming from sun to produce highly reactive chlorine atoms i.e. free Cl radicals.

Suitable alternatives to chloroflurocarbons which are not depleting ozone are :

HCFC – Hydrochloroflurocarbons; and HFC – 125 Hydrochloroflurocarbons ; which act as a substitute for CFCs, which are non-ozone depleting.

Discussion

28.	State the colour of : Phenolphthalein solution after passage of ammonia through it.
Answer» Colourless phenolphthalein changes to pink colour.

Discussion

29.	Choose the letter corresponding to the correct answer from — A : NO2 , B : NO, C : N2 , D : N2O.The gas obtained when –1. Dry ammonia and dry oxygen gas are ignited together.2. Ammonia is passed over heated litharge. 3. A greenish yellow gas reacts with excess ammonia.4. (a) Dry NH3 and O2 are passed over heated Pt.(b) The gaseous product obtained is further oxidised.5. Ammonium nitrite undergoes thermal decomposition.
Answer» 1. C(N₂) 2. C(N₂) 3. C(N₂) 4. (a) B(NO) (b) A(NO₂ ) 5. D(N₂O)

29.

Choose the letter corresponding to the correct answer from — A : NO2 , B : NO, C : N2 , D : N2O.The gas obtained when –1. Dry ammonia and dry oxygen gas are ignited together.2. Ammonia is passed over heated litharge. 3. A greenish yellow gas reacts with excess ammonia.4. (a) Dry NH3 and O2 are passed over heated Pt.(b) The gaseous product obtained is further oxidised.5. Ammonium nitrite undergoes thermal decomposition.

Answer»

1. C(N₂)

2. C(N₂)

3. C(N₂)

4. (a) B(NO)

(b) A(NO₂ )

5. D(N₂O)

Discussion

30.	State the colour of : Copper (II) hydroxide solution after-addition of ammonium hydroxide in excess to it.
Answer» The pale blue precipitate turns into a deep blue coloured solution.

Discussion

31.	State your observation : Calcium hydroxide is heated with ammonium chloride crystals.
Answer» Ca(OH)₂ + 2NH₄Cl → CaCl₂ + H₂O + 2NH₃ ammonia gas is evolved which fumes strongly in moist air.

31.

State your observation : Calcium hydroxide is heated with ammonium chloride crystals.

Answer»

Ca(OH)₂ + 2NH₄Cl → CaCl₂ + H₂O + 2NH₃

ammonia gas is evolved which fumes strongly in moist air.

Discussion

32.	State the method used with reasons for drying and collecting ammonia gas.
Answer» Calcium oxide (quick lime) is used for drying ammonia. It is because, calcium oxide being basic in nature does not react chemically with ammonia. CaO + H₂O → Ca(OH)₂ Chemicals such as CaCl₂ (anhydrous), P₂O₅ and cone H₂SO₄ are not used for drying ammonia, because they react chemically with it as shown in the equation below : (i) CaCl₂ + 8NH₃ → CaCl₂.8NH₃ (ii) P₂O₅ + 3H₂O + 6NH₃→ 2(NH₄)₃PO₄ (iii) H₂SO₄ + 2NH₃ → (NH₄)₂SO₄ Ammonia is collected by downward displacement of air. Ammonia gas is highly soluble in water, as such it cannot be collected over water. Further, ammonia is lighter than air. As such ammonia is collected by downward displacement of air.

32.

State the method used with reasons for drying and collecting ammonia gas.

Answer»

Calcium oxide (quick lime) is used for drying ammonia. It is because, calcium oxide being basic in nature does not react chemically with ammonia.

CaO + H₂O → Ca(OH)₂

Chemicals such as CaCl₂ (anhydrous), P₂O₅ and cone H₂SO₄ are not used for drying ammonia, because they react chemically with it as shown in the equation below :

(i) CaCl₂ + 8NH₃ → CaCl₂.8NH₃

(ii) P₂O₅ + 3H₂O + 6NH₃→ 2(NH₄)₃PO₄

(iii) H₂SO₄ + 2NH₃ → (NH₄)₂SO₄

Ammonia is collected by downward displacement of air. Ammonia gas is highly soluble in water, as such it cannot be collected over water. Further, ammonia is lighter than air. As such ammonia is collected by downward displacement of air.

Discussion

33.	State why ammonia is not obtained in the laboratory from NH4NO3 and NaOH.
Answer» Ammonium nitrate on heating decomposes explosively with the formation of nitrous oxide and water. NH₄NO₃ + Heat → 2H₂O + N₂O

33.

State why ammonia is not obtained in the laboratory from NH4NO3 and NaOH.

Answer»

Ammonium nitrate on heating decomposes explosively with the formation of nitrous oxide and water.

NH₄NO₃ + Heat → 2H₂O + N₂O

Discussion

34.	What are the products formed when ammonia is oxidized with copper oxide.
Answer» 3CuO(Copper (II)) oxide + 2NH₃(Ammonia) → 3Cu (copper) + N₂(nitrogen) + 3H₂O(water)

Discussion

35.	From the gases ammonia, hydrogen chloride, hydrogen sulphide, sulphur dioxide – Select the following :1. When this gas is bubbled through copper sulphate soln., a deep blue coloured solution is formed.2. This gas burns in oxygen with a green flame.
Answer» 1. ammonia 2. ammonia

35.

From the gases ammonia, hydrogen chloride, hydrogen sulphide, sulphur dioxide – Select the following :1. When this gas is bubbled through copper sulphate soln., a deep blue coloured solution is formed.2. This gas burns in oxygen with a green flame.

Answer»

1. ammonia

2. ammonia

Discussion

36.	From the following gases – ammonia, chlorine, hydrogen chloride, sulphur dioxide, select the gas that turns moist red litmus paper blue.Write the equation for the reaction – when the gas is passed over heated CuO.
Answer» Ammonia gas. 3CuO + 2NH₃ → 3Cu + N₂ + 3H₂O

36.

From the following gases – ammonia, chlorine, hydrogen chloride, sulphur dioxide, select the gas that turns moist red litmus paper blue.Write the equation for the reaction – when the gas is passed over heated CuO.

Answer»

Ammonia gas.

3CuO + 2NH₃ → 3Cu + N₂ + 3H₂O

Discussion

37.	Ammonia cannot be dried by bubbling through concentrated sulphuric acid. Why ?
Answer» Ammonia gas cannot be dried by bubbling through concentrated sulphuric acids as it reacts with sulphuric acid to form ammonium sulphate. 2NH₃ + HSO₄ → (NH₄)₂SO₄

37.

Ammonia cannot be dried by bubbling through concentrated sulphuric acid. Why ?

Answer»

Ammonia gas cannot be dried by bubbling through concentrated sulphuric acids as it reacts with sulphuric acid to form ammonium sulphate.

2NH₃ + HSO₄ → (NH₄)₂SO₄

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Write an equation for the reaction of chlorine with excess of ammonia.

Name the ion other than ammonium ion formed when ammonia dissolves in water.

A metal ‘X’ has valency 2 and a non-metal ‘Y’ has a valency 3. If ‘Y ’ is a diatomic gas, write an equation for the direct combination of X and Y to from a compound.

State one relevant observation — Ammonia gas is burnt in an atmosphere of excess oxygen.

Name the other ion formed when ammonia dissolves in water. Give one test that can be used to detect the presence of the ion produced.

State the conditions required for : Catalytic oxidation of ammonia to nitric oxide.

Give an equation for the burning of ammonia in oxygen. State the observation seen.

Copy and complete the following table relating to important industrial process:Name of the processTemperatureCatalyst Equation for the catalyzed reactionHaber’s process

Copy and complete the following table relating to important industrial process :Name of the processTemperatureCatalystEquation for the catalyzed reactionHaber's process

Give reasons for the observation seen during catalytic oxidation of ammonia.

State your observation when – Water is added to the product formed, when aluminium is burnt in a jar of nitrogen gas.

State your observation when – in the absence of a catalyst ammonia gas is burnt in an atmosphere of oxygen.

Give the equation for the reaction : ammonium chloride is heated with sodium hydroxide.

Certain blanks spaces are left in the following tables as C, D &amp; E. Identify each of them.Lab preparation of Reactants usedProducts formedDrying agentMethod of collectionNH3 gasCMG(OH)2 NH3DE

Write the balanced chemical equation for each of the following –1. Reaction of ammonia with heated copper oxide.2. Laboratory preparation of ammonia from ammonium chloride.

Name two gases you have which can be used to study the fountain experiment. State the common property demonstrated by the fountain experiment ?

State one relevant observation for the following reaction – Burning of ammonia in air.

Write a relevant equation, to show that ammonia can act as a reducing agent.

Name an industrial process which involves ammonia, oxygen and a catalyst as its starting reactants.

Write a balanced equation for the following reaction :Ammonium sulphate from ammonia and dilute sulphuric acid.

Give equation for – reaction in which NH3 is oxidized by :1. a metal oxide ;2. a gas which is not oxygen.

Name an ammonium salt which is a constituent of(a) smelling salts(b) dry cells. Give reasons for the use of the named ammonium salt for the same.

State the purpose of liquefying the ammonia produced in the process.

Write the equation for the reaction in the Haber’s process that forms ammonia.

Give one use with reason of1. an aqueous solution of NH32. liquefied NH3

State what are chlorofluorocarbons and give their use. Give a reason why they are ozone depleting. State a suitable alternative to chlorofluorocarbons which are non-ozone depleting.

State the colour of : Phenolphthalein solution after passage of ammonia through it.

State the colour of : Copper (II) hydroxide solution after-addition of ammonium hydroxide in excess to it.

State your observation : Calcium hydroxide is heated with ammonium chloride crystals.

State the method used with reasons for drying and collecting ammonia gas.

State why ammonia is not obtained in the laboratory from NH4NO3 and NaOH.

What are the products formed when ammonia is oxidized with copper oxide.

From the gases ammonia, hydrogen chloride, hydrogen sulphide, sulphur dioxide – Select the following :1. When this gas is bubbled through copper sulphate soln., a deep blue coloured solution is formed.2. This gas burns in oxygen with a green flame.

From the following gases – ammonia, chlorine, hydrogen chloride, sulphur dioxide, select the gas that turns moist red litmus paper blue.Write the equation for the reaction – when the gas is passed over heated CuO.

Ammonia cannot be dried by bubbling through concentrated sulphuric acid. Why ?

Certain blanks spaces are left in the following tables as C, D & E. Identify each of them.Lab preparation of Reactants usedProducts formedDrying agentMethod of collectionNH3 gasCMG(OH)2 NH3DE