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MCQs: The relative atomic mass of Na is
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MCQs: The mass of an atom relative to C-12 is
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MCQs: Over 70% of earth's crust is covered with
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MCQs: The list which contains only elements is
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MCQs: The formula mass indicates the simplest ration between
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MCQs: The smallest part of an element that cannot exist as a free state is
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MCQs: A free radical has
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MCQs: Branch of chemistry dealing with the plantation and overcoming greenhouse effect is
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MCQs: 1 mole of a substance refers to
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MCQs: The number of protons in the nucleus constitute it's
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MCQs: Compounds have atoms of
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MCQs: An oxide ion has -2 charge because
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MCQs: Which of the following is present in vinegar?
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MCQs: The molecular formula gives
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MCQs: 6.022 * 10²³ atoms of Sulphur contains
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MCQs: An ionic compound is electrically
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MCQs: Gram molecular mass of C6H12O6 is
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MCQs: In glucose the simplest ratio between C, H and O is
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MCQs: The formula mass of NaCl is
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MCQs: Species present in a substance refers to
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