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Question: Almost the entire mass of an atom is concentrated in the__________. 1. proton 2. el...
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(Q.1) The molecular formula of alcohol derived from pentane is (a) C 5 H 9 OH (b) C 5 H 7 OH ...
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Atoms and Molecules (Q.1) Write down the formulae of aluminium sulphate and ethanol. ...
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