Multiple choice

Which of the following is not an example of hygroscopic subatance?

  1. solid NaOH

  2. conc H2SO4

  3. Zn(NO3)2

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

Certain hygroscopic substances, not only absorb moisture from the air, but also dissolve themselves in that moisture, undergoing a change of state. Such substances are called deliquescent substances. The process is called Deliquescence.It is a deliquescent substance.

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