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प्रश्न
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
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उत्तर
- Solid
- Gaseous
- Well
- Lake
- Ice
APPEARS IN
संबंधित प्रश्न
Give reason for Silica gel pouches are kept in unused water bottle.
Give reason of Carbonated drinks are bottled under high pressure.
The solubility of a gas in water.............. with rise in temperature and.......................with rise in pressure.
Describe the water-cycle in nature.
What is the importance of dissolved impurities in water?
Why is it said that water is life?
The water in a lake is called ground water.
Give the importance of dissolved air – in water.
What is meant by the term ‘oil spill’?
Select the correct word from the words in option to complete the sentence:
If pressure on the surface of water increases its boiling point ____ and freezing point ____.
Differentiate between the following:
Natural water and treated water
Match the terms in List I with the correct answers in List II.
| List I | List II |
| 1. Solubility in a given solvent decreases with an increase in temperature. | A: Na2SO4.10H2O |
| 2. A white efflorescent crystal | B: NaOH |
| 3. A hygroscopic dehydrating agent | C: Ca(HCO3)2 |
| 4. A deliquescent alkali | D: conc. H2SO4 |
| 5. A substance present in temporary hard water | E: CaSO4 |
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
Water changes to ice at ______.
State whether the following statement is True or False. If false, give the correct statement.
51% of the earth’s surface is covered with water
A jumbled word is given here. Write the correct form of the word.
CHARREGE
Which of the following is waste water?
Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
Look at the figure.
Write down activities shown in this figure in which water is being used.
