4. Adding chlorine to water kills the germs.
(D) Match the following: (Total 04 questions. I mark for each)
1. Filtration
(a) Soluble impurity
2. Chlorination
(b) Sedimentation
3. Common salt
(c) Chlorine tablets
4.
Insoluble impurities
(d) Bromine tablets
(e) Filter paper
Ans. 1-0
), 2-(
), 3-( .4 .5-( )
Apollo International School/2020 -21/Grade - S/Nidan Kastilar
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Explanation:
Abc
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1. Filtration = (e) Filter paper
2. Chlorination = (c) Chlorine tablets
3. Common salt = (a) Soluble impurity
4. Insoluble impurities = (b) Sedimentation
5. disinfectant = (d) Bromine tablets
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