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Standard VII

Chemistry

Salts

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Question

Write the formulae of the salts given below.
Potassium sulphate, sodium sulphate, calcium sulphate, magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium chloride.

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Solution

Potassium sulphate- $K_{2} S O_{4}$
Sodium sulphate- $N a_{2} S O_{4}$
Calcium sulphate- $C a S O_{4}$
Magnesium sulphate- $M g S O_{4}$
Copper sulphate- $C u S O_{4}$
Sodium chloride- $N a C l$
Sodium nitrate- $N a N O_{3}$
Sodium carbonate- $N a_{2} C O_{3}$
Ammonium chloride- $N H_{4} C l$

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Similar questions

Q. Write the formula of the following compounds.
calcium hydroxide, copper chloride, iron sulphate, sodium carbonate, copper nitrate, copper oxide, lead sulphide, magnesium chloride, zinc sulphate, potassium hydroxide.

Identify the odd one out and justify.

(a) Chloride, nitrate, hydride, ammonium

(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia

(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate

(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride

(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.

(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.

(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Select from the following group of these salts which may be dissolved in water to make it hard.

(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate

Q. Using sodium hydroxide solution, how would you distinguish:
(a) Ammonium sulphate from sodium sulphate.
(b) Zinc nitrate solution from calcium nitrate solution.
(c) Iron (II) chloride from Iron (III) chloride.

Write the balanced chemical equations of the following reactions.

(a) Sodium hydroxide + sulphuric acid $\to$ sodium sulphate + water

(b) Potassium bicarbonate + sulphuric acid $\to$ potassium sulphate + carbon dioxide + water

(d) Chlorine + sulphur dioxide + water $\to$ sulphuric acid + hydrogen chloride

(e) Silver nitrate $\to$ silver + nitrogen dioxide + oxygen

(f) Copper + nitric acid $\to$ copper nitrate + nitric oxide + water

(g) Ammonia + oxygen $\to$ nitric oxide + water

(h) Barium chloride + sulphuric acid $\to$ barium sulphate + hydrochloric acid

(i) Zinc sulphide + oxygen $\to$ zinc oxide + sulphur dioxide

(j) Aluminium carbide + water $\to$ aluminium hydroxide + methane

(k) Iron pyrites ( $F e S_{2}$ ) + oxygen $\to$ ferric oxide + sulphur dioxide

(l) Potassium permanganate + hydrochloric acid $\to$ potassium chloride + manganese chloride + chlorine + water

(m) Aluminium sulphate + sodium hydroxide $\to$ sodium sulphate + sodium meta aluminate + water.

(n) Aluminium + sodium hydroxide + water $\to$ sodium meta aluminate + hydrogen

(o) Potassium dichromate + sulphuric acid $\to$ potassium chloride + chromium chloride + water + chlorine.

(p) Sulphur + nitric acid $\to$ sulphuric acid + nitrogen dioxide + water.

(q) Sodium chloride + manganese dioxide + sulphuric acid $\to$ sodium hydrogen sulphate + manganese sulphate + water + chlorine.

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Write the formulae of the salts given below.Potassium sulphate, sodium sulphate, calcium sulphate, magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium chloride.

Potassium sulphate-K2SO4Sodium sulphate-Na2SO4Calcium sulphate-CaSO4Magnesium sulphate-MgSO4Copper sulphate-CuSO4Sodium chloride-NaClSodium nitrate-NaNO3Sodium carbonate-Na2CO3Ammonium chloride-NH4Cl

Write the formulae of the salts given below.
Potassium sulphate, sodium sulphate, calcium sulphate, magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium chloride.

Potassium sulphate- $K_{2} S O_{4}$
Sodium sulphate- $N a_{2} S O_{4}$
Calcium sulphate- $C a S O_{4}$
Magnesium sulphate- $M g S O_{4}$
Copper sulphate- $C u S O_{4}$
Sodium chloride- $N a C l$
Sodium nitrate- $N a N O_{3}$
Sodium carbonate- $N a_{2} C O_{3}$
Ammonium chloride- $N H_{4} C l$