7th Class Science Acids, Bases and Salts Question Bank Acids, Bases and Salts

  • question_answer 50) DIRECTIONS: Read the passage given below and answer the questions that follow. Passage ? 2 The reaction between an acid and a base is known as neutralization reaction. In this reaction salt and water are produced with evolution of heat. Which of the following is not an example of neutralization?

    A) Taking antacid in case of acidity

    B) Treating acidic soil with quick lime

    C) Change in colour of blue litmus paper to red with acidic solution

    D) Both (a) and (b)

    Correct Answer: C

    Solution :

    Change in colour of litmus paper is not an example of neutralization.

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