Question

B. Circle the odd-one out giving appropriate reason.
1. Hydrogen, Oxygen, Sulphur, Arsenic, Chlorine
2. Dull, Non-conductor, Brittle, Metal, Non-metal
3. Iron, Zinc, Magnesium, Copper, Sodium​

Answer 1

Answer:

. arsenic

. metal

. sodium

Answer 2

Answer:

arsenic

non metals

sodium