Water Exe-3C Very Short Answer Chemistry Class-9 ICSE Selina Publishers

Water Exe-3C Very Short Answer Chemistry Class-9 ICSE Selina Publishers Solutions Chapter-3. Step By Step ICSE Selina Concise Solutions of Chapter-3 Water with All Exercise including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type, Numerical and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.

Water Exe-3C Very Short Answer Chemistry Class-9 ICSE Concise Selina Publishers

Board ICSE
Publications Selina Publication
Subject Chemistry
Class 9th
Chapter-3 Water
Book Name Concise
Topics Solution of (Soft and hard Water) Exercise – 3C Very Short Answer
Academic Session 2023-2024

Exercise – 3C Very Short Answer

Water Class-9 Chemistry Concise Solutions  


Question 1.


(a) The solute and solvent in sugar solution.

(b) The characteristic property which makes water the universal solvent.

(c) A substance whose solubility shows an anomalous behaviour.

(d) A substance whose solubility rapidly increases with the temperature.


(a) Sugar is solute, water is solvent

(b) Water is a polar covalent compound having a dielectric constant which makes it a universal solvent.

(c) Solubility of Glauber’s salt [Na2SO4.10H2O] shows anomalous behaviour.

(d) Potassium nitrate

Question 2.

What is the composition of water? In what volume its elements combine?


The composition of water is 2 atoms of hydrogen with 1 atom of oxygen (H2O).

By number of atoms, they combine in the ratio 2:1.

Question 3.

Name the substances which give water:

(a) temporary hardness

(b) permanent hardness


(i) Hydrogen carbonates of calcium and magnesium make water temporary hard.

(ii) Sulphates and chlorides of magnesium and calcium make water permanently hard.

Question 4.

Name three methods [CM1] by which hydrous substances can be made anhydrous.


Hydrous substances can be made anhydrous by:

  1. Direct heating
  2. Heating in dry or hot air
  3. By using dehydrating/desiccating agents such as warm concentrated sulphuric acid.

—  : End of Water Exe-3C Very Short Answer Class-9 ICSE Chemistry Solutions :–

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