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CGP EDU Academic Team
Published on: August 14, 2026
Sodium salt of an organic acid ‘X’ produces effervescence with conc. H 2 SO 4 . ‘X’ reacts with the acidified aqueous CaCl 2 solution to give a white precipitate which decolourises acidic solution of KMnO 4 . ‘X’ is :
Text Solution
Verified by ExpertsThe correct answer is:
C
Na 2 C 2 O 4 + H 2 SO 4 ⎯→ Na 2 SO 4 + H 2 O + CO + CO 2
Na 2 C 2 O 4 + CaCl 2 ⎯→ CaC 2 O 4 ↓ + 2NaCl
8H 2 SO 4 + 5CaC 2 O 4 + 2KMnO 4 ⎯→ 5CaSO 4 + K 2 SO 4 + 2MnSO 4 + 8H 2 O + 10CO 2
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