Question

$\huge\underbrace\mathfrak\red {Question }$
4. Some reactions are given below. Identify the chemical reaction and write
the reasons.
1. Melting of ice.
2. Dissolution of sugar in water.
3. Burning of wood.
4. Blackening of pieces of potatoes, brinjals and apples.
5. Melting of wax.
6. Blackening of silver ornaments.
7. Souring of Milk
8. Synthesis of food by green plants in presence of sunlight..
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Answer 1

Answer:

1.Physical Change Yes, melting of ice is a physical change because it is a change in only the physical properties of the substance and it can be reversed

2.Physical Change

3.Chemical Change

4.Chemical change

5.Physical Change

6.Chemical Reaction

7.Chemical Reaction

8.Chemical Reactions because in this process Photosynthesis is formed