Chapter 2: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 2
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MCQ 151: Medical instruments can be sterilized using
MCQ 152: Sodium and chlorine are attracted to each other because they are
MCQ 153: The nearest shell to a nucleus is called
MCQ 154: The number of elements are approximately
MCQ 155: Atoms are linked together by chemical bonds. The two common chemical bonds are
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