Question

Which type of change is the following?

(i) Adding sugar to milk

(ii) Milk turning to curd

(iii) Melting of iron

(iv) Producing steel using iron, chromium and nickel

(v) Photosynthesis

(vi) Respiration.​

Answer 1

Explanation:

i. physical

ii. chemical

iii. physical

iv. chemical

v. chemical

vi. chemical

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Answer 2

Explanation:

1. physical change 2. chemical Change 3. physical change 4. chemical change 5. chemical change 6. chemical change