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Observe the given Venn diagram carefully and identify the processes represented by points 1, 2, and 3.

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1-Burning of paper, 2-Rusting of iron, 3-Spoilage of food

1-Burning of fossil fuel, 2-Boiling potatoes, 3-Baking a cake

1-Lighting a kerosene stove, 2-Breaking of an eggshell, 3-Photosynthesis

1- Burning of LPG gas in the kitchen, 2- Crystallisation of copper sulfate, 3- Browning of cut slices of apple

answer is C.

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Detailed Solution

Lighting a kerosene stove involves both physical and chemical change

1) Breaking egg shell is an irreversible physical change

2) Photosynthesis is an irreversible chemical change.

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