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Assertion : When a concentrated solution is diluted by adding more water, molarity of the solution remains unchanged.
Reason : Product of moles of a solute and volume is equal to the molarity.
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Reason : Product of moles of a solute and volume is equal to the molarity.
Solution:
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The correct answer is:
If both assertion and reason are false.
Molarity equation is written as $M_1 V_1=M_2 V_2$ thus if the $V_2$ changes $M_2$ also changes.
Molarity $=\frac{\text { moles of solute }}{\text { volume of solution in litre }}$
Molarity $=\frac{\text { moles of solute }}{\text { volume of solution in litre }}$
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