Gas molecules are said to be perfectly elastic because

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Equal volumes of CO2 cnd CO at s.t.p have the same

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Which of the following movements can be described as random motion?

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Exhaust fumes discharged from a smoky vehicle gradually become invisible as a result of

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One mole of a compound M(HCO3)2 has a mass of 162g. Calculate the relative atomic mass of M. H = 1, C =12, O = 16

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If an element with high electron affinity combines with another element with low ionization energy the bond formed will be mainly

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Which of the following compounds has the highest ionic character?

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The crystal layers in graphite are held together by

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Which of the following halogens is the most reactive?

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Which of the following reactions is not feasible?

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In the Periodic Table, the elements that loss electrons most readily belong to

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Which of the following properties increases down a group in the Periodic Table?

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