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35
One Faraday of electricity will liberate one mole of
the metal from the solution of
(1) Auric chloride (2) Silver nitrate
(3) Calcium chloride (4) Copper sulphate
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Q1
Q. Write balanced equations for the following word equations.
1. Potassium chloride + Silver nitrate potassium nitrate + Silver chloride
2. Alumnium hydroxide + Sodium nitrate Aluminum nitrate + Sodium hydroxide
3. Iron metal + Copper(II) sulphate Iron(ii) sulphate + copper metal 4.
4. Alumnium metal + Copper(II) chloride Aluminum chloride + copper metal
5. Potassium bromide potassium metal + Bromine
6. Calcium carbonate Calcium oxide + Carbon dioxide gas
7. Zinc metal + Oxygen gas Zinc oxide
8. Chlorine gas + Sodium metal Sodium chloride
9. Aluminum sulphate + Barium chloride Aluminum chloride + Barium sulphate
10. Sodium hydrogen carbonate Sodium carbonate + Carbon dioxide + Water
1. Potassium chloride + Silver nitrate potassium nitrate + Silver chloride
2. Alumnium hydroxide + Sodium nitrate Aluminum nitrate + Sodium hydroxide
3. Iron metal + Copper(II) sulphate Iron(ii) sulphate + copper metal 4.
4. Alumnium metal + Copper(II) chloride Aluminum chloride + copper metal
5. Potassium bromide potassium metal + Bromine
6. Calcium carbonate Calcium oxide + Carbon dioxide gas
7. Zinc metal + Oxygen gas Zinc oxide
8. Chlorine gas + Sodium metal Sodium chloride
9. Aluminum sulphate + Barium chloride Aluminum chloride + Barium sulphate
10. Sodium hydrogen carbonate Sodium carbonate + Carbon dioxide + Water
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Q2
Write the balanced chemical equations for the following reactions.
(A) Calcium hydroxide + Carbon dioxide → Calcium carbonate + water
(B) Zinc + Silver nitrate → Zinc nitrate + Silver
(C) Aluminium + copper chloride → Aluminium chloride + Copper
(D) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride. [2 Marks]
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Q3
Which of the following combination of metal and metal salt solution will undergo a displacement reaction? [0.5 marks]
(a) Sodium chloride solution and copper
(b) Sodium chloride solution and magnesium
(c) Ferrous sulphate solution and silver
(d) Silver nitrate solution and copper
(a) Sodium chloride solution and copper
(b) Sodium chloride solution and magnesium
(c) Ferrous sulphate solution and silver
(d) Silver nitrate solution and copper
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Q4
(a) State the colour of the residue formed when nitrates of
1. Calcium 2. Zinc 3. Lead 4. Copper are strongly heated.
(b) Give one test each to distinguish between the following pairs of chemicals.
1. Zinc nitrate solution and calcium nitrate solution.
2. Sodium nitrate solution and sodium chloride solution.
3. Iron (III) chloride solution and copper chloride solution.
1. Calcium 2. Zinc 3. Lead 4. Copper are strongly heated.
(b) Give one test each to distinguish between the following pairs of chemicals.
1. Zinc nitrate solution and calcium nitrate solution.
2. Sodium nitrate solution and sodium chloride solution.
3. Iron (III) chloride solution and copper chloride solution.
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Q5
One faraday of electricity will liberate one gram mole of the metal from the solution of:
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