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MCQMediumJEE Main 2023 · 31 January, Shift 1Potassium Dichromate & Permanganate

Chemistry Question from JEE Main 2023 · 31 January, Shift 1

When Cu2+Cu^{2+} ion is treated with KI, a white precipitate, X appears in solution. The solution is titrated with sodium thiosulphate, the compound Y is formed. X and Y respectively are:

  • A

    X=Cu2I2, Y=Na2S4O5X = Cu_2I_2, \, Y = Na_2S_4O_5

  • B

    X=Cu2I2, Y=Na2S4O6X = Cu_2I_2, \, Y = Na_2S_4O_6

  • C

    X=CuI2, Y=Na2S4O3X = CuI_2, \, Y = Na_2S_4O_3

  • D

    X=CuI2, Y=Na2S4O6X = CuI_2, \, Y = Na_2S_4O_6

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