Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Why is it necessary to test for the acid radicals first with dil. H 2 SO 4 and then with conc. H 2 SO 4 ?
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
There are some ions like, SO 3 2– , S 2– , NO 2 – and CH 3 COO – which can react with dilute/conc. H 2 SO 4 whereas ions like Cl – , Br – , I – , NO 3 Θ , etc. react only with con. H 2 SO 4 .
Now if conc. H 2 SO 4 is used first then the anions of both the types will react. Hence, it is desired to test acid radicals first with dilute H 2 SO 4 and then with conc. H 2 SO 4 .
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
How many of the following will volatilize on heating leaving no solid residue ?
(i) NaNO 3 (ii) NH …
Na 2 S + Na 2 [Fe(CN) 5 NO] → ''A'' (Violet Color)
In Complex ''A'', number of type of ambidentate …
Heating which of the following salts in a dry test tube may cause a change in their colour ?
Which of the following combinations will give yellowish precipitate in an aqueous medium?
Which of the following produce red coloured flame during flame test ?
When Borax is heated it forms a colourless glassy bead because of formation of :