Chemistry Quiz

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Chemistry Quiz

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Dalton assumed that water contains one atom of hydrogen and one atom of oxygen and concluded that the relative weight of the oxygen atom must be

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Another objection to Bohr

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The orbits in which the electron may travel are shown as grey circles; their radius increases as

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Cast iron by oxidising impurities in a reverberatory furnace lined with :-

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Concentration involves the separation of valuable minerals from the other raw materials received from the ?

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The radius of the first Bohr orbit of hydrogen atom is :-

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Which statements are correct for Limitations of Bohr's Theory ?

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The

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Another method of concentration of ores is the

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The oxidation state of an atom in any pure element, whether monatomic,diatomic or polyatomic ?

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Oxidation is a form of

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The

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The ore needs

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The first part of Dalton's theory

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Gold and silver ores are concentrated by ?

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Name of the Dalton's experiment ?

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Ferrous oxide is converted into ferric oxide?

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The oxide can then be easily reduced to metallic copper using coke :-

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In which process Electrons can jump from one orbit to another ?

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In hydrogen atom the speed of electron is

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An ore of a metal is an impure source, such as sand, grit, clay, rocks etc. These impurities are collectively known as

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Concentrated solution of sodium hydroxide at a pressure of

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