MCQEasyJEE Main 2023 · 24 January, Shift 2Potassium Dichromate & Permanganate

Chemistry Question from JEE Main 2023 · 24 January, Shift 2

K2Cr2O7K_2Cr_2O_7 paper acidified with dilute H2SO4H_2SO_4 turns green when exposed to:

  • A

    Carbon dioxide

  • B

    Sulphur trioxide

  • C

    Hydrogen sulphide

  • D

    Sulphur dioxide

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