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State PCS PYQPrelims 2019

UPPCS · Question 61

Which of the following is an example of herbicide?

  1. Sodium chlorate
  2. Potassium permanganate
  3. Bleaching powder
  4. None of the above
Show answer & explanation

Answer: (A) Sodium chlorate

Explanation

Sodium chlorate (NaClO3) is a non-selective herbicide (weedkiller). Potassium permanganate and bleaching powder are disinfectants/oxidisers.