A universal indicator turns red in a solution. Hence, the pH of solution is :

neutral

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strong Acid

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weak acid

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slightly alkaline

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Solution

The correct option is B strong Acid
A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or alkalinity of solutions. It turns red on treating with a strong acid whereas it turns purple with a strong base.

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Similar questions

Q. A solution of which of the below given

p H

turns universal indicator violet?

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

(a) What would you expect the pH of the pure water to be?

(b) What colour would the universal indicator show in an aqueous solution of sugar? Why?

(c) A sample of rainwater turned universal indicator paper yellow. What would you expect its pH to be? Is it a strong or a weak acid?

What can a universal indicator indicate?
(i) Whether a solution is acidic.
(ii) Whether a solution is basic.
(iii) The pH of the solution.
(iv) Whether a base is strong or weak.
(v) Whether an acid is strong or weak.

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 the action of solution B on litmus?

(d) Name any two substances which can give solutions like B.

(e) What sort of reactions takes place when solution A reacts with solution B?

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