10th Chemistry Chapter 7 Exercise Quiz
Chemistry 10th Class Chapter 7 Water Exercise Quiz Online-topper.pk
Online quizzes are an excellent way for students to assess their understanding of key concepts. At topper.pk, we provide quizzes for 10th Class Chemistry Chapter 7: Water, aligned with the latest syllabus. These quizzes are designed to prepare students for school exams as well as competitive exams such as PPSC, NTS, CSS, and others. In addition to the quizzes, our YouTube channel, Asif Brain Academy, offers detailed video explanations for each quiz question, ensuring a complete and thorough understanding of the topic. These resources are accessible online, enabling students to study anytime and anywhere.
Below are some important MCQs with answers for Chapter 7: Water.
10th Chemistry Chapter 15 Exercise Solved MCQS- Online Quiz
(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
(XV) Ionic compounds are soluble in water due to: (ch15)
a
Hydrogen bonding
b
Dipole-dipole forces
c
Ion-dipole forces
d
Dipole-induced dipole forces
(XVI) The chemicals used to kill or control pests are called pesticides. They are: (ch15)
a
Dangerous inorganic chemicals
b
Dangerous organic chemicals
c
Beneficial inorganic chemicals
d
Beneficial organic chemicals