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In the scheme given below , X and Y , respectively, are Metal halide NaOH . aq Wh ite precipitate ( P ) + Filtrate ( Q ) P Heat ) excess ( PbO , SO H . aq 2 4 2 X (a colour species in solution) Q Warm SO H . Cons , ) OH ( MnO 4 2 2 Y (gives blue - coloration with KI - starch paper
- 2 2 4 Br and CrO
- 2 2 4 Cl and MnO
- 2 4 Cl and MnO
- HOCl and MnSO 4
Correct answer: 2 4 Cl and MnO
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