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

  • question_answer You dissolved a sample, in distilled water and then added a drop of this solution to a test-tube containing blue litmus solution which changes to red. It shows that the sample given to you is of:

    A) soap                            

    B) tomato juice

    C) baking soda                

    D) sugar

    Correct Answer: B

    Solution :

    Since the blue litmus changes to red, the sample is acidic in nature. Both soap and baking soda are basic whereas sugar is neutral.

adversite


You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos