1. Explain the role of filtration tank for the purification of water.
2. Differentiate between miscible and immiscible liquids, with example.
3. Explain how air is the mixture of gases?
4. Name the method of separation suitable for separating the following mixtures:
a) Alcohol and water
b) Water and acetone
c) Sodium chloride and ammonium chloride
d) Dye from ink
e) Impurities from water.
5 .What chemical substance is added in water to kill microorganisms like bacteria, during the process of filtration?
Answers
Answer:
1.During the process ofwater purification, waterwhich comes to thefiltration tank has impurities and suspended particles. ... When water passes though these layers, even the smallest of suspended particles are removed.
3.The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water vapor, argon, and carbon dioxide, and very small amounts of other gases. ... It is separated into its components by fractional distillation of liquefied air.
4. a) Alcohol and water- To separate two liquids we use themethod of fractional distillation. Fractional distillation is a method forseparating a liquid from a mixture of two or more liquids. This method works on the principle of boiling points of the liquids in the mixture.
b) Water and acetone-Therefore, the acetone and the water mixture are separated by option (A)- distillation. Additional information: The decantation technique is used when one of the substances in the immisciblemixture is heavier than the other. Such that the heavier substance settles down at the bottom and the water can be removed.
c) Sodium chloride and ammonium chloride-Mixture of NaCL and NH4Cl can be separated by sublimation. Ammonium chloride and sodium chloride mixture is taken in a porcelain dish.
d) Dye from ink-Dye from ink can be separated by evaporation.
e) Impurities from water.-In a mixture of sand and water, the heavier sand particles settle down at the bottom and the water can be separatedby decantation. Filtration can be used toseparate components of a mixture of an insoluble solid and a liquid.
5.After the water has been filtered, a disinfectant (for example, chlorine, chloramine) may be added in order to killany remaining parasites, bacteria, and viruses, and to protect the water fromgerms when it is piped to homes and businesses.
Explanation:
Hope its help
