Ncert solutions

Ncert solutions

Grade 7

Acids, Bases and Salts | Exercise

Question 1

Q1) State differences between acids and bases.

Solution 1:

ACID

  1. Acids are sour in taste.
  2. Acids turn blue litmus red.
  3. Acids do not change the colour of red litmus.
  4. With china rose indicator, acids give dark pink colour.
  5. Acids do not change the colour of turmeric indicator.

bases

  1. Bases are bitter in taste.

    1. Bases do not change the colour of blue litmus.

    3.Bases turn red litmus blue.

    1. With china rose indicator, bases give green colour.

    2. Bases turn the colour of turmeric indicator to red.

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subject-cta

Question 1

Q1) State differences between acids and bases.

Solution 1:

ACID

  1. Acids are sour in taste.
  2. Acids turn blue litmus red.
  3. Acids do not change the colour of red litmus.
  4. With china rose indicator, acids give dark pink colour.
  5. Acids do not change the colour of turmeric indicator.

bases

  1. Bases are bitter in taste.

    1. Bases do not change the colour of blue litmus.

    3.Bases turn red litmus blue.

    1. With china rose indicator, bases give green colour.

    2. Bases turn the colour of turmeric indicator to red.

Still have questions? Our expert teachers can help you out

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subject-cta
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