Question Paper
Class / Subject: Class 8 (CBSE) · Science
Chapter: Chapter 9 — Chapter 9: The Amazing World of Solutes, Solvents, and Solutions
Time Allowed: 15 minutes
Max Marks: 6
1. The substance that dissolves in a solution is called the: [1]
(A) solute
(B) solvent
(C) mixture
(D) compound
2. Water is often called the: [1]
(A) universal solvent
(B) universal solute
(C) universal compound
(D) universal mixture
3. Carbon dioxide dissolved in soda is an example of a: [1]
(A) gas-in-liquid solution
(B) solid-in-liquid solution
(C) liquid-in-liquid solution
(D) gas-in-gas solution
4. A solution containing the maximum solute it can dissolve is called: [1]
(A) saturated
(B) diluted
(C) unsaturated
(D) concentrated only
5. For most solids, solubility in water: [1]
(A) increases with temperature
(B) decreases with temperature
(C) stays the same always
(D) becomes zero at high temperature
6. A warm fizzy drink loses its carbonation faster than a cold one because gas solubility: [1]
(A) decreases as temperature increases
(B) increases as temperature increases
(C) is unaffected by temperature
(D) only depends on pressure