What colour does litmus paper turn in alkaline solution?
Answer and explanation
Correct answer: A. Blue
Litmus is blue in alkali and red in acid.
Answer: Blue.
Why not the others: Red: that is the colour in acid. Colourless: litmus does not lose its colour. Green: universal indicator shows green when neutral.
Answer: Blue.
Why not the others: Red: that is the colour in acid. Colourless: litmus does not lose its colour. Green: universal indicator shows green when neutral.
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