AIIMS2010Chemistry-Solutions
AIIMS 2010 Chemistry Concentration Units MCQ Question
Type: MCQ-numerical-Easy-Class 12
When 25 g of Na₂SO₄ is dissolved in 10³ kg of solution, its concentration will be
A
2.5 ppm
B
25 ppm
C
250 ppm
D
100 ppm
Correct Answer
Option B
Detailed Explanation
When a solute is present in very minute amounts, the concentration is expressed in ppm.
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