Question

2.Acid-base indicator is used to find the acidic or basic nature of the substances.(true/false)
3.Lithium,sodium and potassium are metals of the same group, but different period.(true /false)
4.About a half test tube of lemon juice (ph 5) is added to about half test tube of lime water (ph 10).The ph of the resultant solution is expected to be 7.(true/false)
5.Mendeleev arranged elements based on atomic number.(true/false)​

Answer 1

true

true

false

true

hope it helpsss uhh

Answer 2

Answer:

2.False

3.True

4.True

5.False