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If the law of conservation of mass was to hold true, then of , on reaction with of will produce of and ________ of .
(a)11.65 g
(b)23.3 g
(c)25.5 g
(d)30.6 g

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Important Questions on Some Basic Concepts of Chemistry
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Pure water can be obtained from various sources, but it always contains hydrogen and oxygen, combined in a ratio of by weight. This is an example of ___________.

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Two containers of same size are filled separately with gas and gas. Both the containers are under same temperature and pressure will contain same __________.

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In and the ratio of the masses of oxygen that combine with a fixed mass of sulphur is . This is an example of the law of ________.

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Which of the following reactions has the ratio of volume of the reacting gases and the product as ?

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The volume of oxygen required for complete combustion of of at is _______.

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Dalton assumed that ___________ are the smallest particles of substance.

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Atoms have a mass of the order __________

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Atoms have a radius of the order ___________
