V. Fill in the blanks 1. The gas which helps to keep swimming pool clean is and element. 2. Ammonia (NH,) contains of 3. Write the names of any two compounds name, used in your house. compound 4. Compounds are classified into inorganic compound and 5. element is used to prepare matches and rat poison. 6. Alcohol can be separated from water by 7. A few drops of 'Dettol' when added to water turns the mixture turns turbid. Why?
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1 chlorine gas helps to keep the swimming pool is clean.
2 one nitrogen atom and three hydrogen atoms.
3 sodium chloride -salt, acetic acid-vinegar.
4 Compounds are classified into the inorganic compound and the organic compound.
5 Phosphorus element is used to prepare matches and rat poison.
6 Alcohol can be separated from water by fractional distillation.
7 turbid means cloudiness. Dettol and water are mixed with each other and form the emulsion. when Dettol was suspended in water and scatter white light.
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