/FUNDAMENTALS OF CHEMISTRY MCQS class 9 SET 2 MCQs :- multiple choice questions and answers. e.g MCQS, Mock Tests , Practice Papers , Sample Test, Sample questions

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Question 1: The mass number of an atom is

number of protons only

number of neutrons only

number of electrons

number of protons and neutrons

Total MCQS Questions are 42 in this paper FUNDAMENTALS OF CHEMISTRY MCQS class 9 SET 2
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