LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
51 views
in General by (117k points)
closed by
The amount of calcium carbonate in line stone is determined by which of the following tests?
1. Acid test
2. Ball test
3. Heat test
4. Compressive strength test

1 Answer

0 votes
by (59.9k points)
selected by
 
Best answer
Correct Answer - Option 1 : Acid test

Explanation:

The amount of Calcium Carbonate in limestone is determined by performing the acid test. The acid used is dilute Hydrochloric acid. The reaction involved is:

CaCO3 + 2HCl → CaCl2 + H2O + CO2

The method used for measuring CaCO3 comprises the following steps

1. Dissolving limestone in hydrochloric acid.

2. Adding KOH solution and Calcium Carboxylate indicator into said solution.

3. Titrating the solution until its color turns to blue from red using EDTA standard solution and then working out the CaCO3 content on the basis of the titer of EDTA.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...