Write balanced equations to satisfy each statement- a Acid - Active metal - Salt - Hydrogen b Acid - Base - Salt - Water c Acid - Carbonate - Salt - Water - Carbon dioxide or bicarbonate d Acid - Sulphite or bisulphite - Salt - Water - Sulphur dioxide e Acid - Sulphide - Salt - Hydrogen Sulphide

Name: ICSEC - Grade 10 - Chemistry - Acids, Bases and Salts - Q9
Uploaded: 2022-07-04T10:36:42+05:30
Description: (a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H2(g) ↑ (b) HCl (aq) + NaOH(aq) → NaCI (aq) + H2O (c) Na2CO3(s) + 2HCI (aq) → 2NaCI (aq) + H2O(l) + CO2 (g) ↑ (d) NAHSO3 ...

(a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H2(g) ↑ (b) HCl (aq) + NaOH(aq) → NaCI (aq) + H2O (c) Na2CO3(s) + 2HCI (aq) → 2NaCI (aq) + H2O(l) + CO2 (g) ↑ (d) NAHSO3 ...

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Byju's Answer

Standard X

Chemistry

Acids and Bases in Water

Write balance...

Question

Write balanced equations to satisfy each statement.

(a) Acid + Active metal $\to$ Salt + Hydrogen

(b) Acid + Base $\to$ Salt + Water

(c) Acid + Carbonate $\to$ Salt + Water + Carbon dioxide

or bicarbonate

(d) Acid + Sulphite or bisulphite $\to$ Salt + Water + Sulphur dioxide

(e) Acid + Sulphide $\to$ Salt + Hydrogen Sulphide

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Solution

(a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H₂(g) ↑

(b) HCl (aq) + NaOH(aq) → NaCI (aq) + H₂O

(c) Na₂CO₃(s) + 2HCI (aq) → 2NaCI (aq) + H₂O(l) + CO₂(g) ↑

(d) NAHSO₃ + HCl → SO₂ + H₂O + NACl

(e) Na₂S(aq) + 2 HCl(aq) = H₂S(g) + 2 NaCl(aq)

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acid +metal Bicarbonate -------> salt + water+ carbon dioxide

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Q. All metal carbonates and ................. react with acids to gives corresponding salt, carbon dioxide and water.

Q. Indicate if the following statements are true or false.
(a) Oxides of non-metals dissolve in water to form some acids.
(b) Sulphites are salts formed from sulphuric acid.
(c) Phosphoric acid is tribasic.
(d) Nitric acid can only form normal salts.
(e) Hydrochloric acid can form both carbonates and bicarbonate.
(f) Carbonic acid can form both carbonates and bicarbonates.
(g) Water of crystallisation is found in anhydrous salts.
(h) Litmus turns red in the presence of alkalis.
(i) An acid reacts with a carbonate to form a salt, and hydrogen gas is obtained.
(j) Acid taste sweet.
(k) When the metal zinc reacts with hydrochloric acid, a salt called zinc chloride is formed.
(l) when metals react directly with acids, the reaction is called a displacement reaction.
(m) Sulphuric acid has the formula H₂SO₃.
(n) Carbon dioxide gas is given off as a result of displacement reactions between acids and metals.

Question 24.
Which of the following statements is not correct ?

(a) All metal carbonates react with acid to give a salt, water and carbon dioxide
(b) All metal oxides react with water to give salt and acid
(c) Some metals react with acids to give salt and hydrogen
(d) Some non-metal oxides react with water to form an acid

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Acids and Bases in Water

Standard X Chemistry

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(a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H2(g) ↑ (b) HCl (aq) + NaOH(aq) → NaCI (aq) + H2O (c) Na2CO3(s) + 2HCI (aq) → 2NaCI (aq) + H2O(l) + CO2 (g) ↑ (d) NAHSO3 + HCl → SO2 + H2O + NACl (e) Na2S(aq) + 2 HCl(aq) = H2S(g) + 2 NaCl(aq)

(a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H₂(g) ↑

(b) HCl (aq) + NaOH(aq) → NaCI (aq) + H₂O

(c) Na₂CO₃(s) + 2HCI (aq) → 2NaCI (aq) + H₂O(l) + CO₂(g) ↑

(d) NAHSO₃ + HCl → SO₂ + H₂O + NACl

(e) Na₂S(aq) + 2 HCl(aq) = H₂S(g) + 2 NaCl(aq)