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  • Hydrochloric Acid: Properties and Reactions
  • Which of the following are two black coloured oxidizing a...
Multiple choice

Which of the following are two black coloured oxidizing agents, which react with concentrated HCl to liberate chlorine?

  1. Pb3O4 and MnO2

  2. PbO and CuO

  3. MnO2 and CuO

  4. MnO2 and K2Cr2O7

  5. MnO2 and KMnO4

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

MnO2 and CuO are two black coloured oxidizing agents

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