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Effect on Indicators by Acids and Bases

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Question

Two solutions X and Y are tested with universal indicators. Solution X turns orange whereas solution Y turns red. Which of the solutions is a stronger acid ?

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Solution

pH values is inversely proportional to acidic nature. Lower the pH, greater the acidic nature.

Since pH value of red color is less than orange.

Thus, solution Y is more acidic than X.

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Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.

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Q. Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
(a) What will be the action of solution A on litmus?
(b) What will be action of solution B on litmus?
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(d) Name any two substances which can give solutions like B.
(e) What sort of reaction takes place when solution A reacts with solution B?

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