Explain the difference between deliquescent and Hygroscopic substance give two example of each
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Answer:
The water soluble substance which absorb moisture from the air and then dissolve on the absorbed moisture to change into liquid taste are called deliquescent substances
Most deliquescent substances are salts. Examples include sodium hydroxide, potassium hydroxide, ammonium chloride, gold(III) chloride, sodium nitrate, and calcium chloride.
whereas the substances which absorb moisture from air but do not change their state are called hygroscopic substances.
Examples of such substances include CaO,NaNO
3
,NaCl, sucrose and CuO. Also, certain liquid substances absorb water from the air to get diluted, these are also regarded as being hygroscopic. Example, conc. H2
SO4, and conc. HCl. lf a hydroscopic substance absorbs so much moisture that an aqueous solution is formed, the substance becomes deliquescent.