A student tests the pH of pure water using a pH paper. It shows green colour. If a pH paper is used after adding lemon juice to water, what colour will he observe?
(Green / Red / Yellow)
Red
Lemon juice is acidic in nature hence it will turn the colour of the pH paper red. Now a sample of pure water is chemically neutral in nature and hence when we put lemon juice to water then the solution would also become acidic and upon testing the solution of lemon juice and water we would observe a red colour in the pH paper.
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Generated by AI. May contain inaccuracies — always verify with your textbook.