NEET Chemistry Concentration Terms Assertion Reason Question
Assertion (A): A 10% (v/v) ethanol solution in water has 10 mL of ethanol in 90 mL of water. | Reason (R): Volume percentage is calculated as the volume of solute divided by the total volume of solution, multiplied by 100.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
According to the NCERT context, a 10% (v/v) solution means 10 mL of ethanol is dissolved in enough water to make the total solution volume 100 mL, not 90 mL. Therefore, Assertion A is false, but Reason R correctly explains how volume percentage is calculated.
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