Punjab 11th Class Chemistry Acids Bases and Salts Mcqs Test Online Chemistry Acids Bases and Salts Mcqs Test Online Punjab Class 9th 1234567891011121314151617181920Show paginator Hide paginator 5% Question 1 of 20Chemistry 1. An aqueous solution of which compound is basic: Ammonium nitrate Calcium chloride Potassium carbonate Ammonium acetate Question 1 of 20Question 2 of 20 2. The oxide of a metal was found to react with HCl along aqueous NaOH solution. Which of the following is the best description of the oxide? Basic Amphoteric Acidic Neutral Question 2 of 20Question 3 of 20 3. When crystals of copper sulphate are heated, the colour changes from blue to white. This is caused by: Loss of water only Loss of water and SO₂ Loss of water, sulphur dioxide and oxygen Reaction with CO₂ in the air Question 3 of 20Question 4 of 20 4. Which one of the following statements must be true of an acid salt? It is the salt of a non-metal It is the only salt formed from a dibasic acid It contains hydrogen that is replaceable by a metalIt can only be formed from a weak acid Question 4 of 20Question 5 of 20 5. If dry citric acid crystals are placed on dry litmus paper they will Turn yellow Remains unchanged Turn green Turn red Question 5 of 20Question 6 of 20 6. If a liquid has a pH of 7. It must be neutral It has boiling point of 100°C It must be a solution It must be colourless Question 6 of 20Question 7 of 20 7. If 25cm³ of 1 mol.dm⁻³ nitric acid is added to 50cm³ of 0.5 potassium hydroxide solution, what would be the pH of the resulting solution: 9 7 5 14 Question 7 of 20Question 8 of 20 8. Water cannot act as: Lewis base Bronsted baseBronsted acid Lewis acid Question 8 of 20Question 9 of 20 9. A base is a substance which will neutralize an acid which of these substances is not a base: Aqueous ammonia Sodium carbonateCopper oxide Potasium chloride Question 9 of 20Question 10 of 20 10. Which salt could be obtained as the insoluble product of a reaction between a dilute acid and an aqueous salt? AgNO₃CuSO₄ BaSO₄ MgSO₄ Question 10 of 20Question 11 of 20 11. When air is bubbled through pure water, the pH is lowered from 7.0 to 5.6, which gas in the air is responsible for this change Carbon dioxide Nitrogen Argon OxygenQuestion 11 of 20Question 12 of 20 12. Which one of the following salts cannot be prepared by a reaction between a dilute acid and a metal? FeCl₂ CuCl₂ MgSO₄CaCl₂ Question 12 of 20Question 13 of 20 13. One mole of each of the following compounds was dissolved in water to make One dm³ of solution. Which of the solution would have the lowest pH value? H₂SO₄CH₃COOH NH₃ NaCl Question 13 of 20Question 14 of 20 14. A strong acid: Always decomposes carbonates Always contains oxygen Is always fully ionized when in solution Is always partially ionized when in solution Question 14 of 20Question 15 of 20 15. Which statement about acids is not correct? An acid: Gives off carbon dioxide form a carbonate Has a pH of less than 7 Contains oxygen Contains hydrogen ions in solution Question 15 of 20Question 16 of 20 16. pH of 0.01M HCl solution is: 1.010² 2.0 10⁺² Question 16 of 20Question 17 of 20 17. Which of the following oxides is classified incorrectly: Zinc oxide (ZnO) amphoteric Carbon monoxide neutral Carbon dioxide (CO₂) acidic Lead oxide (PbO) basic Question 17 of 20Question 18 of 20 18. Which one of the following oxides dissolves in water to form acidic solution: SO₂ Na₂O SiO₂ MgO Question 18 of 20Question 19 of 20 19. Which one of the following oxides react with aqueous NaOH to give a salt. Magnesium oxideCalcium oxide Iron oxide Copper oxide Question 19 of 20Question 20 of 20 20. An aqueous solution of ammonium chloride is: Neutral Basic AmphotricAcidic Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 11th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.