Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Which amongst the following reactions cannot be used for the respective preparation ?
A
2KBr + H 2 SO 4 (conc.) 
K 2 SO 4 + 2HBr
K 2 SO 4 + 2HBr
B
NaCl + H 2 SO 4 (conc.) 
NaHSO 4 + HCl
NaHSO 4 + HCl
C
NaHSO 4 + NaCl 
Na 2 SO 4 + HCl
Na 2 SO 4 + HCl
D
CaF 2 + H 2 SO 4 (conc.) 
CaSO 4 + 2HF
CaSO 4 + 2HF
Text Solution
Verified by ExpertsThe correct answer is:
A
H 2 SO 4 being oxidising agent oxidises HBr to Br 2 .
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
Covalency of oxygen cannot exceed 2 unlike sulphur which can show +4 or +6 because
Why do alkali metals form unipositive ions and impart characteristic colours to flame?
Comment on the order of mobilities of the alkali metal ions in aqueous solution : Li + < Na + < K +…
Why is KO 2 paramagnetic ?
Draw the structure of BeCl 2 in solid and vapour state.
Explain why in anion of Na 2 CO 3 all bond lengths are equal ?