Question

Q.2 Find the odd one out: 6

1) Boron, Silicon, Arsenic, Sodium

2) Ca, Ba, S, Sr

3) Lithium, Sodium, Iodine, Potassium

4) Hydrogen, Helium, Neon, Argon

5) Carbon, Nitrogen, Oxygen, Sulphur

6) Li, Sr, K, Na​

Answer 1

Answer:

1 sodium

2 Sr

3 iodine

4 hydrogen

5 sulphur

6 Sr