Why is the conversion of milk into curd considered a chemical change?
Answer and explanation
Correct answer: Because substances with new properties are formed
When milk changes into curd, bacterial action changes components of the milk and curd with new properties is formed. Curd differs from milk in taste, smell, and texture, so this is a chemical change. A change of state alone, such as water freezing into ice, is not a chemical change because no new substance is formed.
Frequently asked questions
What is the correct answer to this question?
Because substances with new properties are formed
Why is this the correct answer?
When milk changes into curd, bacterial action changes components of the milk and curd with new properties is formed. Curd differs from milk in taste, smell, and texture, so this is a chemical change. A change of state alone, such as water freezing into ice, is not a chemical change because no new substance is formed.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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