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

  • question_answer 57) DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 4 Indicators change their colour when added to a solution containing an acidic or a basic substance. Turmeric, litmus, China rose petals (Gudhal), etc., are some naturally occurring indicators. Which of the following is correct about the indicator China rose?

    A) It is a natural indicator.

    B) It gives green colour in an acidic solution.

    C) It gives magenta colour in a basic solution.

    D) All the above are correct.

    Correct Answer: A

    Solution :

    China rose gives magenta colour in acidic solution and green colour in basic solution.

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

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

Free
Videos