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प्रश्न
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Are these changes chemical in nature?
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उत्तर
Yes, the changes are chemical changes because new substances iron sulphate (green) and copper (brown) are formed in the reaction.
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संबंधित प्रश्न
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MULTIPLE CHOICE QUESTIONS
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