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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