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AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

AIIMS 2008 · Chemistry · Some Basic Concepts of Chemistry

Assertion : When a concentrated solution is diluted by adding more...

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.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

Molarity equation is written as M1V1=M2V2M_1 V_1=M_2 V_2 thus if the V2V_2 changes M2M_2 also changes. Molarity = moles of solute  volume of solution in litre =\frac{\text{ moles of solute }}{\text{ volume of solution in litre }}
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