You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature (acidic/basic/ neutral) of each solution.

AcademicChemistryNCERTClass 7

The activity is given below:

  • Take 4 test tubes.
  • Add the sugar solution, baking soda solution, tamarind solution, salt solutions in different test tubes.
  • Now add blue litmus solution and note down the change in colour.
  • Then add red litmus solution and note the changes.

Observation: 

  1. Sugar solution – No change in colour of blue or red litmus solution.
  2. Baking soda solution – Turns red litmus blue.
  3. Tamarind solution – Turns blue litmus red.
  4. Salt solution – No change in colour of blue or red litmus solution.

Inference:

Sugar solution and salt solution – neutral

Baking soda solution – basic

Tamarind solution – acidic

raja
Updated on 10-Oct-2022 13:21:30

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