CLASS 9 • NCERT SCIENCE • CHAPTER 5
Exploring Mixtures and their Separation
Interactive Practice Worksheet
Student Details
Suggested practice time: 90–120 minutes. Attempt the questions before checking solutions.
Objective Questions: 0 / 30
Start answering the MCQs and fill-in-the-blanks.
A
Multiple Choice Questions
20 Questions × 1 Mark = 20 Marks
Choose the most appropriate answer. Use Check MCQs to evaluate your responses.
B
Fill in the Blanks
10 Questions × 1 Mark = 10 Marks
Select the correct term from the options provided.
C
Conceptual Questions
10 Questions × 3 Marks = 30 Marks
Write your answers in your own words. Use scientific terminology, examples and comparisons wherever appropriate.
D
Numerical Problems
5 Questions × 4 Marks = 20 Marks
Show the formula, substitution, calculation and final answer with the correct unit.
Mass by mass % = (Mass of solute ÷ Mass of solution) × 100
Mass by volume % = (Mass of solute in g ÷ Volume of solution in mL) × 100
Volume by volume % = (Volume of solute ÷ Volume of solution) × 100
Mass by volume % = (Mass of solute in g ÷ Volume of solution in mL) × 100
Volume by volume % = (Volume of solute ÷ Volume of solution) × 100
