Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed on the pH paper. What would be the colour obtained?

(a) Red
(b) Yellow
(c) Yellowish green
(d) Blue

Open in App

Solution

The reaction between hydrochloric acid and sodium hydroxide is a neutralisation reaction. The reaction involved is:

$HCl + NaOH \to NaCl + H_{2} O$

Since the resulting solution is obtained as a result of neutralisation reaction the colour of the neutral solution (with pH = 7) obtained is yellowish green.

Suggest Corrections

Similar questions

Q. Question 26.
Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed on the pH paper. What would be the colour obtained? (You may use colour guide given in figure of NCERT Book (Science Class X) on page 26).

(a) Red
(b) Yellow
(c) Yellowish green
(d) Blue

Q. Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the colour obtained?

Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the
colour obtained? (You may use colour guide given in your text book)

A Drop of colourless liquid was placed on blue litmus paper. The litmus paper turned red. The liquid could be :
(1) dilute hydrochloric acid
(2) dilute sodium hydroxide solution
(3) distilled water
(4) sodium bicarbonate solution

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

Join BYJU'S Learning Program

Explore more

Types of Salts

Standard IX Chemistry

Join BYJU'S Learning Program

Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed on the pH paper. What would be the colour obtained? (a) Red (b) Yellow (c) Yellowish green (d) Blue

The reaction between hydrochloric acid and sodium hydroxide is a neutralisation reaction. The reaction involved is: HCl+NaOH→NaCl+H2O Since the resulting solution is obtained as a result of neutralisation reaction the colour of the neutral solution (with pH = 7) obtained is yellowish green.

Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed on the pH paper. What would be the colour obtained?

(a) Red
(b) Yellow
(c) Yellowish green
(d) Blue