Question

In an experiment to measure the pH values of solutions, a student placed strips of universal indicator paper in four beakers containing solutions A, B, C and D. The colour of universal indicator paper in these solutions is as shown below The solution having lowest pH value is
(1) A
(2) B
(3) C
(4) D

Answer 1

Answer:

(3) C

WELL since it is orange colour

Answer 2

In an experiment to measure the pH values of solutions, a student placed strips of universal indicator paper in four beakers containing solutions A, B, C and D. The solution having lowest pH value is identified as C

Explanation:

• In acids, bases, and neutral solutions, the standard indicator shows a broad range of color variations.
• This shows a red color for heavy acids, and changes from orange to yellow for mild acids. Bases are changing from indigo to violet.
• Acids have the minimum value on the pH scale. Out of the given choices, solution C has the lowest pH as it is the strongest acid.

Therefore the correct answer is Option(3) C which has the lowest pH value as compared to A, B and D.