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Question
Give the preparation of the salt given in the left column by matching with the methods given in the right column. Write balanced equations for each preparation.
| Salt | Method of Preparation |
| Zinc sulphate | Precipitation |
| Ferrous sulphide | Displacement |
| Barium sulphate | Neutralization |
| Sodium sulphate | Synthesis |
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Solution
| Salt | Method of Preparation |
| Zinc sulphate | Displacement |
| Ferrous sulphide | Synthesis |
| Barium sulphate | Precipitation |
| Sodium sulphate | Neutralization |
i) Preparation of Zinc Sulphate by displacement method:
Zn + H2SO4 → 2ZnSO4 + H2
ii) Preparation of Ferrous sulphide by synthesis method:
Fe + S → FeS
iii) Preparation of Barium sulphate by precipitation method:
BaCI2 + H2SO4 → BaSO4 + 2HCI
iv) Preparation of Sodium sulphate by neutralization method:
2NaOH + H2SO4 → Na2SO4 + 2H2O
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| Dilute sulphuric acid |
Copper, Iron, |
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(a) Action of an acid on a metal.
(b) Action of an acid on an oxide or carbonate.
(c) Direct combination.
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(e) Precipitation (double decomposition).
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(iii) iron(IIl) chloride.
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Give the equation for the preparation of the following salt from the starting material given.
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(b) Neutralization
(c) Decomposition by acid
(d) Double decomposition
(e) Direct synthesis
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| (a) Alkaline phenolphthalein solution | ||
| (b) Methyl orange solution | ||
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