Punjab 11th Class Chemistry Acids Bases and Salts Mcqs Test Online
Questions 20
Total Marks 40
Time 20 Mins
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Punjab 11th Class Chemistry Acids Bases and Salts Mcqs Test Online

Chemistry Acids Bases and Salts Mcqs Test Online Punjab Class 9th

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Question 1 of 20

Chemistry

1. 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

Question 1 of 20

Question 2 of 20

2. Which salt could be obtained as the insoluble product of a reaction between a dilute acid and an aqueous salt?

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Question 3 of 20

3. Which one of the following statements must be true of an acid salt?

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Question 4 of 20

4. Which statement about acids is not correct? An acid:

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Question 5 of 20

5. An aqueous solution of ammonium chloride is:

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Question 6 of 20

6. 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?

Question 6 of 20

Question 7 of 20

7. Which of the following oxides is classified incorrectly:

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Question 8 of 20

8. Water cannot act as:

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Question 9 of 20

9. Which one of the following oxides react with aqueous NaOH to give a salt.

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Question 10 of 20

10. An aqueous solution of which compound is basic:

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Question 11 of 20

11. Which one of the following oxides dissolves in water to form acidic solution:

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Question 12 of 20

12. 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?

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Question 13 of 20

13. 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:

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Question 14 of 20

14. pH of 0.01M HCl solution is:

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15. When crystals of copper sulphate are heated, the colour changes from blue to white. This is caused by:

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16. A strong acid:

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Question 17 of 20

17. Which one of the following salts cannot be prepared by a reaction between a dilute acid and a metal?

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Question 18 of 20

18. A base is a substance which will neutralize an acid which of these substances is not a base:

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Question 19 of 20

19. If dry citric acid crystals are placed on dry litmus paper they will

Question 19 of 20

Question 20 of 20

20. If a liquid has a pH of 7.

Question 20 of 20


 

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