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MCQs: The number of atoms of hydrogen in 2 moles of NH3
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MCQs: The number of atoms in 5 moles of nitrogen atom is
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MCQs: The branch of chemistry which deals with a substance containing carbon is called
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MCQs: The mass of 1 mole of sucrose is
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MCQs: The matter is anything that occupies
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MCQs: The formula which gives the simplest whole-number ratio of atoms is
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MCQs: The mass of carbon present in 44g of carbon dioxide is
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MCQs: The substance which has a formula mass of 133.5 amu is
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MCQs: Cookies and bread rise due to
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MCQs: A free radical has
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MCQs: When halogens are exposed to sunlight, they split up in to
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MCQs: The gram atomic mass of Zn is
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MCQs: A substance whose all atoms have the same atomic number is
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MCQs: A hydrogen atom is
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MCQs: A balloon filled with 5g of hydrogen contains
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MCQs: The number of protons and neutrons in the nucleus if the atomic number of an element is 17 and the mass number is 35, is
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MCQs: Both elements of 1st period contain valence electrons in
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MCQs: In the periodic table, helium is placed at
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MCQs: Across the period the atomic size decreases due to
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MCQs: The first three periods are
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