Sodium salt of an organic acid ‘X’ produces effervescence with conc. H2SO4. ‘X’ reacts with the acidified aqueous CaCl2 solution to give a white precipitate which decolourises acidic solution of KMnO4. ‘X’ is :
CH3COONa
Na2C2O4
C6H5COONa
HCOONa
As we learnt ,
@4590
Reactions involved :
Na2C2O4 + H2SO4 H2C2O4 + Na2SO4
Na2C2O4 + CaCl2 CaC2O4 + 2 NaCl
white ppt.which decolourises acidic KMnO4
Option 1)
CH3COONa
Option 2)
Na2C2O4
Option 3)
C6H5COONa
Option 4)
HCOONa
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