$(a)$ What is a universal indicator?
$(b)$ Write the chemical equation involved in the preparation of sodium hydroxide. Name the process.
$(b)$ Write the chemical equation involved in the preparation of sodium hydroxide. Name the process.
(N/A) universal indicator is a mixture of several indicators that exhibits different colours at different concentrations of hydrogen ions in a solution,allowing for the determination of the $pH$ value.
$(b)$ The process is known as the Chlor-alkali process. The chemical equation is: $2NaCl(aq) + 2H_2O(l) \rightarrow 2NaOH(aq) + Cl_2(g) + H_2(g)$.
$(b)$ The process is known as the Chlor-alkali process. The chemical equation is: $2NaCl(aq) + 2H_2O(l) \rightarrow 2NaOH(aq) + Cl_2(g) + H_2(g)$.
Explore More
Similar Questions
Why is $HCl$ a stronger acid than acetic acid?
Easy
View SolutionWrite balanced chemical equations for the following:
$(a)$ Calcium carbonate reacts with hydrochloric acid.
$(b)$ Calcium oxychloride reacts with hydrochloric acid.
$(c)$ Sodium hydroxide reacts with zinc.
$(a)$ Calcium carbonate reacts with hydrochloric acid.
$(b)$ Calcium oxychloride reacts with hydrochloric acid.
$(c)$ Sodium hydroxide reacts with zinc.
Medium
View SolutionName the gas evolved when dilute $HCl$ reacts with sodium hydrogen carbonate. How is it recognized?
Easy
View SolutionWhat are the causes of acid rain?
Easy
View SolutionMetal compound $A$ reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo