PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoExamine the two statements carefully and decide if the given options are correct:
1. Assertion (A): Burning of wood is a physical change.
Reason (R): The products such as ash and smoke formed on burning of wood cannot be converted to wood.
Reason (R): The products such as ash and smoke formed on burning of wood cannot be converted to wood.
2. Assertion (A): Decaying of food is a chemical change.
Reason (R): Decaying of food is not a permanent change.
Reason (R): Decaying of food is not a permanent change.
3. Assertion (A): A very hot glass shown under cold water got cracked due to expansion of the glass surface.
Reason (R): A very hot glass shown under cold water got cracked due to contraction of the glass surface.
Reason (R): A very hot glass shown under cold water got cracked due to contraction of the glass surface.
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