Question

Fill in the blanks : (4x1=4)

1. Methyl orange is ………. indicator.

2. Turmeric and litmus are ………. acid base indicators.

3. Formation of curd from milk is a ………. change.

4. Large crystals of pure substance are obtained by ………​

Answer 1

1. artificial

2.natural

3. chemical

4.layering

I hope this helps you