Which of the following is an example of herbicide?
- ASodium chlorate
- BPotassium permanganate
- CBleaching powder
- DNone of the above
Show answer and explanation
Correct answer: (a) Sodium chlorate
Explanation
Herbicides are chemicals used to kill or suppress unwanted weeds in crops and wildlands.
Sodium chlorate (NaClO3) is a strong oxidising herbicide used to clear vegetation.
Potassium permanganate is a disinfectant/oxidiser and bleaching powder is a disinfectant, not herbicides.