(a) when sulphuric acid reacts with zinc granules, the product formed is zinc sulphate and hydrogen gas. H2SO4 + Zn → ZnSO4 + H2 Sulphuric acid + Zinc → Zinc sulphate + Hydrogen (b) when dilute hydrochloric acid reacts with magnesium it gives magnesium chloride and hydrogen gas evolved. 2HCl + Mg →Read more
(a) when sulphuric acid reacts with zinc granules, the product formed is zinc sulphate and hydrogen gas.
H2SO4 + Zn → ZnSO4 + H2
Sulphuric acid + Zinc → Zinc sulphate + Hydrogen
(b) when dilute hydrochloric acid reacts with magnesium it gives magnesium chloride and hydrogen gas evolved.
(d) 10 Because, Bases turn red litmus to blue and acids turn blue litmus to red. pH value of basic solution greater than 7. Therefore the solution turns red litmus blue, its pH is likely to be 10.
(d) 10
Because, Bases turn red litmus to blue and acids turn blue litmus to red. pH value of basic solution greater than 7. Therefore the solution turns red litmus blue, its pH is likely to be 10.
When a solution of sodium hydrocarbonate (sodium hydrogen carbonate) is heated, sodium carbonate water and carbon dioxide gas evolved. 2NaHCO₃ → Na₂CO₃ + H₂O + CO₂
When a solution of sodium hydrocarbonate (sodium hydrogen carbonate) is heated, sodium carbonate water and carbon dioxide gas evolved.
Write word equations and then balanced equations for the reaction taking place when –
(a) when sulphuric acid reacts with zinc granules, the product formed is zinc sulphate and hydrogen gas. H2SO4 + Zn → ZnSO4 + H2 Sulphuric acid + Zinc → Zinc sulphate + Hydrogen (b) when dilute hydrochloric acid reacts with magnesium it gives magnesium chloride and hydrogen gas evolved. 2HCl + Mg →Read more
(a) when sulphuric acid reacts with zinc granules, the product formed is zinc sulphate and hydrogen gas.
H2SO4 + Zn → ZnSO4 + H2
Sulphuric acid + Zinc → Zinc sulphate + Hydrogen
(b) when dilute hydrochloric acid reacts with magnesium it gives magnesium chloride and hydrogen gas evolved.
2HCl + Mg → MgCl2 + H2
Hydrochloric acid + Magnesium → Magnesium chloride + Hydrogen
(c) when sulphuric acid reacts with aluminium it gives aluminium sulphate and hydrogen gas evolve.
3H2SO4 + 2Al → Al2(SO4)3 + 3H2
Sulphuric acid + Aluminium → Aluminium sulphate + Hydrogen
(d) when iron metal reacts with hydrochloric acid it forms ferric chloride and hydrogen gas.
2HCl + Fe → FeCl2 + H2
Hydrochloric acid + Iron → Ferric chloride + Hydrogen
See lessWhich one of the following types of medicines is used for treating indigestion?
(c) Antacid is used for treating indigestion.because antacid neutralises the acidity produced in the stomach.
(c) Antacid is used for treating indigestion.because antacid neutralises the acidity produced in the stomach.
See less10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be
(d) 16 mL of HCl solution will be required to neutralise.
(d) 16 mL of HCl solution will be required to neutralise.
See lessA solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains
(b) The solution contains HCl.
(b) The solution contains HCl.
See lessA solution turns red litmus blue, its pH is likely to be
(d) 10 Because, Bases turn red litmus to blue and acids turn blue litmus to red. pH value of basic solution greater than 7. Therefore the solution turns red litmus blue, its pH is likely to be 10.
(d) 10
Because, Bases turn red litmus to blue and acids turn blue litmus to red. pH value of basic solution greater than 7. Therefore the solution turns red litmus blue, its pH is likely to be 10.
See lessWrite an equation to show the reaction between Plaster of Paris and water.
The chemical equation when Plaster of Paris and water reacts: 𝐶𝑎𝑆𝑂₄.1/2𝐻2𝑂+3/2H₂ 𝑂 → 𝐶𝑎𝑆𝑂₄.2𝐻₂𝑂
The chemical equation when Plaster of Paris and water reacts:
𝐶𝑎𝑆𝑂₄.1/2𝐻2𝑂+3/2H₂ 𝑂 → 𝐶𝑎𝑆𝑂₄.2𝐻₂𝑂
See lessWhat will happen if a solution of sodium hydrocarbonate is heated? Give the equation of the reaction involved.
When a solution of sodium hydrocarbonate (sodium hydrogen carbonate) is heated, sodium carbonate water and carbon dioxide gas evolved. 2NaHCO₃ → Na₂CO₃ + H₂O + CO₂
When a solution of sodium hydrocarbonate (sodium hydrogen carbonate) is heated, sodium carbonate water and carbon dioxide gas evolved.
2NaHCO₃ → Na₂CO₃ + H₂O + CO₂
See lessName the sodium compound which is used for softening hard water.
Washing soda (Na2CO3.10H2O) chemically known as sodium carbonate decahydrate is used for softening hard water.
Washing soda (Na2CO3.10H2O) chemically known as sodium carbonate decahydrate is used for softening hard water.
See lessName the substance which on treatment with chlorine yields bleaching powder.
[Ca (OH)2] Calcium hydroxide commonly known as slaked lime, on treatment with chlorine, yields bleaching powder.
[Ca (OH)2] Calcium hydroxide commonly known as slaked lime, on treatment with chlorine, yields bleaching powder.
See lessWhat is the common name of the compound CaOCl2?
CaOCl2 is commonly known as bleaching powder.
CaOCl2 is commonly known as bleaching powder.
See less