Chemistry
Grade-6
Easy
Question
Pick the odd one out.
- Curdling of milk
- Preparation of food
- Digestion of food
- Cutting a paper
Hint:
Some are physical changes and some are chemical.
The correct answer is: Cutting a paper
- Chemical involves chemical reactions and the formation of a new product.
- Physical change is reversible and does not form a new substance.
- In the curdling of milk, milk gets converted to curd with the help of lactic acid.
- During the preparation of food, it produces cooked food.
- During the digestion of food, food particles react with the enzyme and get converted into an absorbable form.
- Cutting paper is a physical change as paper remains as paper.
- Curdling of milk, preparation of food, and digestion of food all are chemical changes.
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