Question 10- 3 Name the metal which is used for galvanizing iron-

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Standard IX

Chemistry

Physical and Chemical Changes

Question 10. ...

Question

Question 10.

The process of digestion is a chemical change. Justify.

Give an example of a physical change that occurs by the action of heat.

(3) Name the metal which is used for galvanizing iron.

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Solution

Food digestion is considered a chemical change because enzymes in the stomach and intestines break down large macromolecules into simpler molecules so that the body can more easily absorb the food.

Melting of Ice

Zinc

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Question 10. The process of digestion is a chemical change. Justify. Give an example of a physical change that occurs by the action of heat. (3) Name the metal which is used for galvanizing iron.

Food digestion is considered a chemical change because enzymes in the stomach and intestines break down large macromolecules into simpler molecules so that the body can more easily absorb the food. Melting of Ice Zinc

Question 10.

The process of digestion is a chemical change. Justify.

Give an example of a physical change that occurs by the action of heat.

(3) Name the metal which is used for galvanizing iron.

Food digestion is considered a chemical change because enzymes in the stomach and intestines break down large macromolecules into simpler molecules so that the body can more easily absorb the food.

Melting of Ice

Zinc