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Class 10 Science Medium Mcq English Medium

The '10H2O' in the formula Na2CO3.10H2O represents

Question
The '10H2O' in the formula Na2CO3.10H2O represents
Water of crystallisation
Water used only for dilution
An impurity in the salt
A solvent with no structural role
Answer
Water of crystallisation
Detailed Explanation
This denotes the fixed number of water molecules present in one formula unit of the salt, i.e. its water of crystallisation.
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