Multiple choice

A dark-purple compound used as an antiseptic and as disinfectant is

  1. potassium nitrate

  2. sodium thiosulphate

  3. potassium permanganate

  4. calcium phosphate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Potassium permanganate (KMnO4) is a dark-purple crystalline solid that acts as a strong oxidizing agent, making it effective as an antiseptic and disinfectant.

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