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MDCAT
Chemistry
2021

Chemistry · S and p Block Elements

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

NaOH is named as caustic soda because _____.

Options
  • A

    It corrodes the organic tissues

  • B

    It is used in soda water

  • C

    It reacts with chlorine gas

  • D

    It reacts with fats to form soap

Explanation

NaOH is termed caustic soda due to its corrosive effects on organic tissues. (caustic = to burn)

Caustic soda is an alkali salt which is also called Lye. It is the common name of sodium hydroxide. This name is given due to the corrosive nature of this salt on animal and plant tissues.

Used in soda water isn't the reason of being called caustic soda

Reaction with chlorine gas isn't the reason of being called caustic soda

Reaction with fats to form soap is also not the reason of being called caustic soda

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Tagged under Chemistry · S and p Block Elements · 2021