Chapter 2: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 2
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MCQ: When the transfer of electrons takes place, the sodium and chlorine atoms turn into
MCQ: The activity of organs in a human body can be studied by
MCQ: In element Uranium-235, the combined number of neutrons and protons is
MCQ: 'Chlorine' becomes an anion because
MCQ: A material which is made up of one type of atom is known as
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