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