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प्रश्न
What is meant by 'hydrated' and 'anhydrous' salts? Explain with examples.
उत्तर
Salts that contain water of crystallisation are called ‘hydrated salts’. For example, copper sulphate crystals contain five molecules of water of crystallisation in one formula unit and hence is written as CuSO4.5H2O. It is also called copper sulphate pentahydrate.
Salts that have lost their water of crystallisation on heating are called ‘anhydrous salts’. For example, when copper sulphate crystals (CuSO4.5H2O), which are blue, are heated strongly, they lose all the water of crystallisation and form anhydrous copper sulphate (CuSO4), which is white
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संबंधित प्रश्न
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating this salt, a brown colored gas is evolved.
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(a) K2CO3
(b) K2SO4
(c) NaCl
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five molecules of water of crystallisation
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Taking sodium carbonate as an example, give the meaning of the following terms: Water of crystallization.
A salt that is formed by the complete neutralization of an acid and a base is called ______ salt.
Salt which is formed by the partial replacement of hydrogen ions of an acid by a metal is called ______.
