CIP1 -Acid, Bases & Salts – Quiz

  1. Fill in the blanks by using following words:
  2. Lemons and limes taste ……………
  3. They contain …………. acid.
  4. This acid is a ………….. acid.
  5. Litmus turns ………….. in acids.
  6. Litmus turns ……………in alkalis.
  7. Litmus turns purple when it is in a ………………….. substance.

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8. Match the following substances with type os substances:

Substance
Sodium hydroxide
Water
Lemon juice
Type of Substance
Neutral
Acid
Alkali

[3]

9. Write ‘True’ for the statements you consider as true and ‘False’ for the incorrect statement:

(a) Universal Indicator changes colour and shows the pH of a substance   ……..……………..

(b) A pH of below 8 is alkaline                                                             ……………………….

(c) When you mix acid and alkali together they make an acidic solution. ……………………

[3]

10. Name three common weak acids.

……………………………………..

……………………………………..

……………………………………..

[3]

11. What should you do if you spill acid?

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

 [3]

      12. Name three common alkalis found in our daily use items.

          ……………………………………………………….

         ……………………………………………………….

         ……………………………………………………….

 [3]

13.  Complete the following table with the colour of Universal Indicator:

Type of substanceColour of Universal Indicator  
Strongly acidic 
Weakly acidic 
Neutral 
Weakly alkaline 
Strongly alkaline 

[5]

14. Write three examples of neutralisation in practical life.

     ……………………………………………………………………..……………………

     …………………………………………………………………………………….……

     …………………………………………………………………………………………

     …………………………………………………………………………………………

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