Question

which indicator is used to carry out the neutralization reaction of hydrochloric acid with sodium hydroxide solution

Answer 1

phenolphthalein indicator is use d

Answer 2

Answer:

• The indicator that is useful in carrying out the “neutralization reaction” of “hydrochloric acid with sodium hydroxide” solution is phenolphthalein.

$\mathrm{HCl}+\mathrm{NaOH} \cdots \mathrm{NaCl}+\mathrm{H}_{2} \mathrm{O}$

• Phenolphthalein is a colorless weak acid indicator that remains colorless in an acidic solution and turns pink or magenta in an alkali solution.
• As the pH of the solution increases, the magenta color darkens and is visible more.
• Acid-base indicators are used in an acid-base neutralization reaction to determine the acidic, neutral or alkali nature of the aqueous solution with the help of the color change it undergoes in each medium.