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P Block Elements question

2023 · 24 Jan · Shift 2 · Q11
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  5. /2023 · 24 Jan · Shift 2 · Q11

P Block Elements question

2023 · 24 Jan · Shift 2 · Q11

JEE MainChemistryP Block ElementsMCQ+4 / −1
K2Cr2O7\mathrm{K_2Cr_2O_7}K2​Cr2​O7​ paper acidified with dilute H2SO4\mathrm{H_2SO_4}H2​SO4​ turns green when exposed to :
  1. A
    Sulphur dioxide
  2. B
    Sulphur trioxide
  3. C
    Hydrogen sulphide
  4. D
    Carbon dioxide
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