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SSC CPO 2019 PYQ — Question 54

SSC CPO Tier I - 11th December 2019 - Shift 1 • General Awareness • Q54

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Which of the following substances is used as a substitute for chlorine in bleaching?

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Correct answer: C

Explanation

The correct answer is Option 3 i.e. Hydrogen peroxide.

                      Bleaching Powder
  • Calcium hypochlorite is known as Bleaching Powder.
  •  It is an inorganic compound with the formula Ca(ClO)2.
  • It is a pale yellowish powder existing with a strong smell of chlorine.
  • It is synthesized by the action of chlorine gas on dry slaked lime (Ca(OH)2).
  • When hydrogen peroxide is exposed to light, it eventually breaks down to water and oxygen and becomes a biodegradable oxygen-based bleach so it can be used as a substitute for chlorine.
  • It is used for bleaching dirty clothes in the laundry, as a bleaching agent.