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A colourless liquid sample was tested with pH paper strip. The colour of the strip changed to reddish pink. The sample could be :
(1) tap water (2)sodium hydroxide solution
(3)distilled water (4)ethanoic acid solution
"

Correct answer: (4) ethanoic acid solution

Explanation: Bases turn red litmus to blue and acids turn blue litmus paper to red. As the colour of litmus paper changed to reddish pink, hence the colourless solution must be ethanoic acid.

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Updated on: 10-Oct-2022

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(1) tap water	(2)sodium hydroxide solution
(3)distilled water	(4)ethanoic acid solution

A colourless liquid sample was tested with pH paper strip. The colour of the strip changed to reddish pink. The sample could be :(1) tap water(2)sodium hydroxide solution(3)distilled water(4)ethanoic acid solution"

Kickstart Your Career

A colourless liquid sample was tested with pH paper strip. The colour of the strip changed to reddish pink. The sample could be :
(1) tap water (2)sodium hydroxide solution
(3)distilled water (4)ethanoic acid solution
"