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Question
Which among the following are physical or chemical change?
Heating of an iron rod to red hot
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Solution
Physical
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RELATED QUESTIONS
What is an oxidation reaction? Identify in the following reaction (i) the substance oxidised, and (ii) the substance reduced:
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State a reason why, when hydrogen is passed over heated copper oxide, the resultant product formed, differs in colour from the original reactant.
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During the reaction of some metals with dilute hydrochloric acid, following observations are made.
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In the redox reaction:
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