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प्रश्न
Write True or False for the following statement.
Tap water does not contain dissolved impurities.
विकल्प
True
False
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उत्तर
False
Correct: Tap water contains dissolved impurities.
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संबंधित प्रश्न
Give the percentage of water in the following:
Tomatoes
Give the importance of water in household purpose
Complete the statement by filling in the blanks with the correct words.
Water is added to the atmosphere by _____________and _____________.
(burning of fossil fuels/condensation of vapour/ respiration by living organisms/photosynthesis)
State whether the following statement is true or false. If false, write the correct statement.
Water finds application as a means of transporting goods.
State whether the following statement is true or false. If false, write the correct statement.
On boiling water exists in the liquid state.
Match the statements in List I, 1-10 with their correct answer in List II, A to J.
| List I | List II |
| 1. Sodium carbonate and water | A: Seawater |
| 2. Chemical used in sedimentation during purification of water | B: The preferred place for an organism |
| 3. vapourisation | C: Liquid state |
| 4. Kerosene and water | D: Aqueous solution |
| 5. A solution which can dissolve more of solute at a given temperature | E: Dissolved gases and minerals |
| 6. Water as a habitat for marine life | F: Unsaturated solution |
| 7. A water-borne disease | G: Immiscible mixture |
| 8. Existence of water between 0°C and 100°C | H: Liquid to a gaseous state |
| 9. Taste in water is due to | I: Dysentery |
| 10. The most impure form of water | J: Alum |
Name the following
The natural process by which circulation of water takes place from the earth’s surface to the atmosphere and back to the earth’s surface.
Name two gases which are soluble in water
Analogy
Ground water : ______ :: Surface-water : lakes
The quantity of water required to produce one page of your book is ______.
