10th Chemistry Chapter 7 Exercise Test Online – MCQ Test
Chapter 7 Test
Water
Water
(I.) Which one of the following properties of water is responsible for the rising of water in plants? (chapter 15)
a) Specific heat capacity
b) Surface tension
c) Excellent solvent action
d) Capillary action
(II.) Specific heat capacity of water is: (chapter 15)
a) 4.2 kJ * g⁻¹ * K⁻¹
b) 4.2 J * g⁻¹ * K⁻¹
c) 2.4 kJ * g⁻¹ * K⁻¹
d) 2.4 J * g⁻¹ * K⁻¹
(III) Water dissolves non-ionic compounds by: (ch15)
a) Ion-ion forces
b) Ion-dipole forces
c) Dipole-dipole forces
d) Hydrogen bonding
(IV) Temporary hardness is because of: (ch15)
a) Ca(HCO₃)₂
b) CaCO₃
c) MgCO₃
d) MgSO₄
(V.) Temporary hardness is removed by adding: (chapter 15)
a) Quick lime
b) Slaked lime
c) Limestone
d) Lime water
(VI) Permanent hardness is removed by adding: (ch15)
a) Na₂ zeolite
b) Soda lime
c) Lime water
d) Quick lime
(VII) Which one of the following salts makes the water permanently hard? (ch15)
a) Na₂CO₃
b) NaHCO₃
c) Ca(HCO₃)₂
d) CaSO₄
(VIII) Rapid growth of algae in water bodies is because of detergent having: (ch15)
a) Carbonate salts
b) Sulphonic acid salts
c) Sulphate salts
d) Phosphate salts
(IX) Depletion of O₂ from water is not because of: (ch15)
a) Decaying of aquatic plants
b) Biodegradation of aquatic plants
c) Rapid growth of aquatic plants
d) Decomposition of aquatic plants
(X) Which one of the following diseases causes liver inflammation? (ch15)
a) Typhoid
b) Jaundice
c) Cholera
d) Hepatitis
(XI) Which one of the following diseases causes severe diarrhea and can be fatal? (ch15)
a) Jaundice
b) Dysentery
c) Cholera
d) Typhoid
(XII) Which one of the following gases is used to destroy harmful bacteria in water? (ch15)
a) Iodine
b) Chlorine
c) Fluorine
d) Bromine
(XIII.) Which one of the following ions does not cause hardness in water? (chapter 15)
a) Ca²⁺
b) Mg²⁺
c) SO₄²⁻
d) Na⁺
(XIV) A disease that causes bone and tooth damage is: (ch15)
a) Fluorosis
b) Hepatitis
c) Cholera
d) Jaundice
10th Chemistry Chapter 7 Exercise Test Online
The online exercise test for 10th Chemistry Chapter 7: Water focuses solely on exercise MCQs, enabling students to deepen their understanding of water’s properties, its chemical composition, and its essential role in life processes. This test is designed to help students practice MCQs directly from the chapter’s exercise and boost their exam preparation. For more educational content, visit Mr Pakistani, and explore our YouTube channel Asif Brain Academy for in-depth tutorials and expert insights.