MCQs: Electrons revolve around the nucleus as fast as
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MCQs: If hydrogen forms only one bond, then the valency of hydrogen is
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MCQs: The bond which comes to existence due to sharing of electrons is known as
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MCQs: The smallest particle of carbon dioxide consists of
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MCQs: The valency of magnesium is
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MCQs: The valency of carbon is
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MCQs: The valency of aluminum is
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MCQs: The negative ion is known as
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MCQs: Steam is used to turn
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MCQs: The symbol of lithium is
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MCQs: If you combine atoms of sodium and chlorine, they will form
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MCQs: Atom means
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MCQs: To date, scientists have made about 26 millions
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MCQs: Generally sodium chloride is known as
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MCQs: The symbol of "Fluorine" is
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MCQs: A tiny dense nucleus in an atom was discovered by
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MCQs: The smallest particle of water is
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MCQs: The atomic number of sodium is 11 and its atomic mass is 23 and the number of protons and neutrons in an atom of sodium is
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MCQs: Most of the covalent compounds are found in
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MCQs: The radioactive isotope of carbon is
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