P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn :

(a) blue litmus red?

(b) red litmus blue?

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Solution

Since P is the aqueous solution of sodium chloride, it is neutral in nature, and therefore the litmus paper will not turn into any colour.

On the other hand, Q is the solution of sodium hydroxide, so it turns red litmus paper blue because it is an alkaline substance.

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Similar questions

Q. Sodium hydroxide turns blue litmus red.

The salt whose aqueous solution will turn blue litmus to red is :

(a) ammonium sulphate

(b) sodium acetate

(d) potassium carbonate

Q. Sodium chloride will turn

(a) blue litmus red
(b) methyl orange yellow
(c) red litmus blue
(d) none of the above

Four students A, B, C and D were studying the effect of the solutions of hydrochloric acid, sodium hydroxide, sodium chloride and pure water respectively on blue litmus solution. Which of the students observed the colour change of blue litmus solution to red?
(1) A
(2) B
(3) C
(4) D

The aqueous solution of one of the following salts will turn red litmus to blue. This salt is :

(a) potassium sulphate

(b) sodium sulphate

(d) potassium carbonate

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P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn : (a) blue litmus red? (b) red litmus blue?

Since P is the aqueous solution of sodium chloride, it is neutral in nature, and therefore the litmus paper will not turn into any colour. On the other hand, Q is the solution of sodium hydroxide, so it turns red litmus paper blue because it is an alkaline substance.

P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn :

(a) blue litmus red?

(b) red litmus blue?

Since P is the aqueous solution of sodium chloride, it is neutral in nature, and therefore the litmus paper will not turn into any colour.

On the other hand, Q is the solution of sodium hydroxide, so it turns red litmus paper blue because it is an alkaline substance.