FIRST TERM EXAMINATION ON CHEMISTRY FOR JSS3 NEW

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Welcome to your FIRST TERM EXAMINATION ON CHEMISTRY FOR JSS3 NEW

1. Range of pH scale is

2. pH of neutral salt is

3. When more and more water is diluted with acids its H+ ion concentration will

4. Which of the following is used as an indicator in the titration of a strong acid and a weak base?

5. Litmus is used to test either the substance is

6. What is the endpoint of a titration

7. The name of the apparatus used for holding the titrant is__________

8. The tirant is also known as_________

9. A water solution who's pH is 10

10. an acid base titration involves a

11. A standard solution always contains

12. In which group of the periodic table is Chlorine located?

13. What is the chemical name of common table salt?

14. What is the atomic number of Chlorine?

15. You should never taste or touch to identify a base because they can be

16. Acids taste

17. Which type of solution turns red litmus paper blue

18. Which among the following is a double salt?

19. Chlorine readily reacts with

20. When a solution contains more acid than the quantity of water, it is called

Subjective

1. _____ is used as disinfectant

2. Mass-Volume measurement is called _____

3. Apparatus used for volume measurement in the laboratory is ______

4. ______ are artificially made acids.

5. CH3COOH is an example of ______

6. _____ is an example of acidic salt

7. The PH of pure water is _____

8. _____ is an example of organic acid.

9. _____ and 10. _____ are types of bases.

Theory

1a. What is Titration? 1b. List and explain 2 types of titration

2a. Define Salt. 2b list 4 types of salt. 2c. Explain 2 in 2b and give one example

3a. What is an Acid? 3b State 3 physical properties of an acid. 3c list

4a. What is PH scale? 4b. State 3 uses of Chlorine 4b.

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