Chapter 18: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 18
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MCQ 151: When the state of matter is changed from solid to liquid, we call it
MCQ 152: The name of the inventor who invented plastic is
MCQ 153: 'Plastics' are
MCQ 154: The reaction of 'magnesium' with air is
MCQ 155: The color of solid sulphur is
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