Question

Assertion (A) On changing volume of
the solution by 20% molarity of
solution also changes by 20%.
Reason (R) Molar concentration or
molarity of solution does not change
on dilution,​

Answer 1

Explanation:

Normality is defined as number of mole equivalents of solute per liter of solution and molarity is defined as number of moles of solute dissolved per liter of solution.So if we add more solvent then volume of solution increases which will affect not only nomality or molarity but also affects molality.

The milli-equivalent and milli-moles of solutes are not changed on addition of more water i.e.,dilution.

So A is wrong but R is correct.....

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