Magnetization of iron is a physical change and not a chemical change as there is no change of state, no changeof temperature, no smell and no evolution of gas. It is because: - NoChemical process is involved. - After demagnetizing the iron it will lose its magnetic power.
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ਇਕ ਵਸਤੂ ਦਾ ਭਾਰ ਹਵਾ ਵਿਚ 10n hi ਹੈ ਅਤੇ ਪਾਣੀ ਵਿਚ ਡੁਬਣ ਤੋਂ ਬਾਅਦ ਉਸ ਦਾ ਭਾਰ8n ਰਹਿ ਜਾਂਦਾ ਹੈ। ਇਸ ਦੁਆਰਾ ਵਿਸਥਾਪਤ ਕੀਤੇ ਪਾਣੀ ਦਾ ਭਾਰ ਹੋਵੇਗਾ।
Answer:
Magnetization of iron is a physical change and not a chemical change as there is no change of state, no changeof temperature, no smell and no evolution of gas. It is because: - NoChemical process is involved. - After demagnetizing the iron it will lose its magnetic power.