Match the compounds with the corresponding colour shown by the universal indicator in a concentrated aqueous solution.

N a O H

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N H_{4} O H

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C H_{3} C O O H

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H C l

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Solution

Universal indicator exhibits a varied range of colours for different strengths of solutions.
$R e d \to S t r o n g a c i d (H C l)$
$O r a n g e \to W e a k a c i d (C H_{3} C O O H)$
$P u r p l e \to S t r o n g b a s e (N a O H)$
$L i g h t b l u e \to W e a k b a s e (N H_{4} O H)$

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Similar questions

Q. Match the type of acid/base with the corresponding colour shown by the universal indicator.

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(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?

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Match the compounds with the corresponding colour shown by the universal indicator in a concentrated aqueous solution.

Universal indicator exhibits a varied range of colours for different strengths of solutions. Red→Strong acid(HCl) Orange→Weak acid(CH3COOH) Purple→Strong base(NaOH) Lightblue→Weak base(NH4OH)

Universal indicator exhibits a varied range of colours for different strengths of solutions.
$R e d \to S t r o n g a c i d (H C l)$
$O r a n g e \to W e a k a c i d (C H_{3} C O O H)$
$P u r p l e \to S t r o n g b a s e (N a O H)$
$L i g h t b l u e \to W e a k b a s e (N H_{4} O H)$