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प्रश्न
Give one word for the following statement:
The harmful substances dissolved in water .
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उत्तर
The harmful substances dissolved in water impurities.
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संबंधित प्रश्न
What do you mean by water pollution ?
What is the effect of impurities present in the water on the melting point and boiling point of water?
Explain why:
Fused CaCl2 or conc. H2SO4 is used in a desiccator.
Explain why:
Table salts become sticky on exposure to humid air during the rainy season.
Answer in your own words.
Why is there a shortage of water even though it occupies about 71% of the earth’s surface?
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
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 ____.
Select the correct word from the words in option to complete the sentence:
Dissolved air in water contains a ____ percentage of oxygen than ordinary air.
Match Column I with Column II
| Column I | Column II | ||
| (a) | Ground water | (i) | Solid form of water |
| (b) | Bawri | (ii) | Wastage of water |
| (c) | Snow | (iii) | Water management |
| (d) | Drip irrigation | (iv) | Small water |
| (e) | Leaking taps | (v) | Water table |
Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?
