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Potassium Permanganate is used for purifying drinking water, because:

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Important Questions on Chemistry

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In modern periodic table, zig-zag line separate _____:
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Eka–Aluminum was named as __________ in the modern periodic table? 
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The outer shell of which group of elements is complete in the modern periodic table?
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Which group of modern periodic table consists of elements with 2, 8, 6 electronic configuration? 
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On heating, Gypsum loses a certain percentage of its water content and becomes_____.
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Who discovered the proton, one of the fundamental particles of an atom?
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For the third period of the periodic table, the shells maybe?

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What conclusion can be drawn from C612 about carbon atom? 
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Which is the first element to be artificially produced?
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The required residual chlorine in drinking water at every tapping point should be_________ ppm ?
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Optimum moisture content is the moisture content at which ___________ ?
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Newlands arranged _____ the then-known elements in his table of octaves.
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Who is regarded as the Father of Modern Chemistry ?
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Determination of coefficient of permeability by means of a field pumping test can be done for _______ ?
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Who among the following scientists postulated the law of constant proportions?