pradeep


{ City } chennai
< Country > india
* Profession * research scholar
User No # 24806
Total Questions Posted # 0
Total Answers Posted # 2

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Question { 5328 }

Why are substances like caustic soda and calcium chloride
called hygroscopic substances ?


Answer

these compounds absorb moisture from atmosphere to become a
hydrated compounds.

Is This Answer Correct ?    0 Yes 0 No

Question { 45418 }

What is the difference between gas and vapour?


Answer

Below the critical temperature of a substance, it is known
as a vapour. It can be liquified. But, a gas exists after
the critical temperature. It can not be liquified.

Is This Answer Correct ?    174 Yes 101 No