Question

Four students were given colourless liquids A,B,C of water, lemon juice and a mixture of water and lemon juice respectively. After testing these liquids with pH paper, following sequence in colour change of pH paper were reported :

I. Blue, Red and Green II. Orange, Green and Green
III. Purple, Red and Green IV.Green, Red and Red

The correct sequence of colours observed is-

• A. I
• B. II
• C. III
• D. IV

Answer 1

Answer: (D)

IV

The given solutions are respectively neutral, acidic and acidic solution.