1.

Which of the following is the suspended impurity?(a) Iron hydroxide(b) Dust(c) Mud(d) NitrogenThe question was asked during an interview for a job.The doubt is from Sources, Impurities and Hardness of Water in section Water of Applied Chemistry

Answer»

The CORRECT answer is (a) Iron HYDROXIDE

For EXPLANATION: The nitrogen is the DISSOLVED impurity. The suspended impurities are iron hydroxide, silica are the inorganic impurities which decomposes the organic impurities.



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