Which of the following pair of acid radicals can be distinguished by using dil. H2SO4?
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a
C2O42− and NO3Θ
b
NO3⊖∘ and NO2⊖
c
Cl⊖ and BrΘ
d
HCO3Θ and CO32−
answer is B.
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Detailed Solution
Hence, distinction is possible. (3) Both Cl⊖ and Br⊖ have no reaction with dil. H2SO4. (4) Both HCO3⊙ and CO32− produce CO2↑ which evolves with effervescences.