Question

Assertion (A): Hydrogen, Oxygen, Iodine, Carbon, Bromine and Chlorine etc. are the examples of non-metals:- 1
Reason (R): non metals are of poor conductor of heat and electricity.
1- A and R are true and R is the correct explanation of A
2- A and R are true and R is not the correct explanation of A
3- A is  true but R is False.
4- A is  false but R is true.​

Answer 1

Answer:

4 will be right answer......