Question 4 Define catalyst. Write any three differences between phy

1.	Question 4 Define catalyst. Write any three differences between physical and chemical change. (c) Classify the following processes into physical or chemical changes.baking of bread, switching of an electric bulb, curdling of milk, dissolving sodium chloride in water, photosynthesis, rusting of iron, evaporation of water, formation of dew, sublimation of camphor, burning of charcoal or LPG, clotting of blood, crystallization of sugar, ripening of fruit, cooking of vegetables, melting of wax.
Answer» Question 4 Define catalyst. Write any three differences between physical and chemical change. (c) Classify the following processes into physical or chemical changes. baking of bread, switching of an electric bulb, curdling of milk, dissolving sodium chloride in water, photosynthesis, rusting of iron, evaporation of water, formation of dew, sublimation of camphor, burning of charcoal or LPG, clotting of blood, crystallization of sugar, ripening of fruit, cooking of vegetables, melting of wax.

Question 4 Define catalyst. Write any three differences between physical and chemical change. (c) Classify the following processes into physical or chemical changes.baking of bread, switching of an electric bulb, curdling of milk, dissolving sodium chloride in water, photosynthesis, rusting of iron, evaporation of water, formation of dew, sublimation of camphor, burning of charcoal or LPG, clotting of blood, crystallization of sugar, ripening of fruit, cooking of vegetables, melting of wax.

Answer»

Question 4

Define catalyst.

Write any three differences between physical and chemical change.

(c) Classify the following processes into physical or chemical changes.

baking of bread, switching of an electric bulb, curdling of milk, dissolving sodium chloride in water, photosynthesis, rusting of iron, evaporation of water, formation of dew, sublimation of camphor, burning of charcoal or LPG, clotting of blood, crystallization of sugar, ripening of fruit, cooking of vegetables, melting of wax.

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