Question

1. When a Candle burns , both physical and chemical change take place. How ?
2. Setting of curd is a chemical change . Explain.​

Answer 1

1)When a candle burns, both physical and chemical changes occur.

Physical Changes: On heating, candle wax gets melted. ...

Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.

2)Setting of curd is a chemical change because we cannot get the original substance (milk) back. The new substance, i.e. curd is different from the milk in taste, smell and chemical properties.

Explanation:

please mark me brainliests