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

  • question_answer Which of the following statements is NOT true?

    A)  Antacids are bases.

    B)  A salt is neither acidic nor basic.

    C)  Phenolphthalein is an indicator.

    D)  All bases are alkalis but all alkalis are not bases.

    Correct Answer: D

    Solution :

    Bases which are soluble in water are called alkalis. But not ail bases are soluble in water. Therefore, all bases are alkalies but all alkalies are not bases.


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