NEET Chemistry Concentration Terms MCQ Question
Which of the following statements about concentration terms in solutions is correct?
A 10% (v/v) ethanol solution means 10 mL of ethanol is mixed with 90 mL of water.
Parts per million (ppm) is defined as the mass of solute present in 1,000,000 mL of solution.
Mass by volume percentage is the mass of solute contained in 100 mL of solution.
The concentration term 'w/V' is specifically used for gases dissolved in liquids.
Correct Answer
Detailed Explanation
Mass by volume percentage (w/V) is indeed defined as the mass of solute dissolved in 100 mL of the solution, as stated in the NCERT content. Option A is incorrect because it describes volume of ethanol in relation to the total volume incorrectly. Option B misstates the definition of ppm, and option D incorrectly assigns the 'w/V' term to gases.
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