-Q- Write the balanced Chemical equation and identify the type of reaction-i- Iron -III- oxide react With aluminium and gives molten iron and aluminium oxide- nbsp-ii- Potassium chloride is mixed silver nitrate to form silver chloride and potassium nitrate- nbsp-iii- Sodium carbonate react with hydrochloric acid to give sodium chloride and sodium hydrogen carbonate-iv- A solution of potassium is added to a solution of lead nitrate-v- When cold water is added to sodium nbsp- metal gives sodium hydroxide and hydrogen gas-

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Gravity Separation

Q. Write the ...

Question

Q. Write the balanced Chemical equation and identify the type of reaction.

(i) Iron (III) oxide react With aluminium and gives molten iron and aluminium oxide.
(ii) Potassium chloride is mixed silver nitrate to form silver chloride and potassium nitrate.
(iii) Sodium carbonate react with hydrochloric acid to give sodium chloride and sodium hydrogen carbonate.
(iv) A solution of potassium is added to a solution of lead nitrate.
(v) When cold water is added to sodium metal gives sodium hydroxide and hydrogen gas.

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Solution

Dear Student,

7.(i)When Iron oxide(Fe₂O₃) reacts with aluminium to give molten iron(Fe) and aluminium oxide(Al₂O₃).

The chemical reaction are
Fe₂O₃ + 2Al ----> 2Fe + Al₂O₃
It is a displacement type reaction.

(ii)When potassium chloride(KCl) when mixed with silver nitrate(AgNO₃) solution an insoluble white substance formed is silver chloride(AgCl).

The chemical reaction are
KCl + AgNO₃ → KNO₃ + AgCl
It is a double displacement type reaction.

Regards

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Q. Write balanced chemical equations for each of the following reactions
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Q. Given below are word equations. Convert them into chemical equations using symbols and valencies. Balance the equations. Use appropriate signs for gases and precipitates in the reaction.
i) Zinc Sulphide

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Oxygen gas

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Zinc oxide solid

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Sulphur dioxide gas
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Sodium chloride solution

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nitrogen dioxide gas

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vi) Aluminium hydroxide

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Nitric acid

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Water.

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

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

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

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(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.

Q. Write balanced chemical equations for the following reactions:
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H_{2} {S O}_{4}

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(ii) Aqueous solution of sodium nitrate is heated with zinc dust and caustic soda solution.
(iii) Sodium iodate is added to a solution of sodium bisulphite.
(iv) Iron reacts with cold dilute nitric acid.
(v) Potassium permanganate is added to a hot solution of manganous sulphate.

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.

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