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प्रश्न
37% of our brain‛s mass consists of water.
पर्याय
True
False
MCQ
चूक किंवा बरोबर
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उत्तर
37% of our brain‛s mass consists of water- False.
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संबंधित प्रश्न
Cleaning of water is a process of removing ______.
Name the four main sources of water.
Give balanced chemical equation for the reaction of water with Sodium .
Use of excessive .................... by farmers causes water pollution.
Give one word for the following statement:
Water fit for human consumption .
Household detergents contain mainly ______ and pollute water bodies.
State the importance of water for all general uses.
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 |
Which are the three states of water?
If, at some place, it did not rain for a very long period of time, what would be its effect on the life of the people there?
