Which of the following compounds is an addition polymer?

Which of the following tests is used for the detection of glucose?

What is the monomer unit of neoprene?

What happens when (Give equations also):
$(i)$ Methane reacts with excess of chlorine in the presence of diffused sunlight.
$(ii)$ Ethanol undergoes combustion.
$(iii)$ Ethyl alcohol reacts with acidified potassium dichromate.

$(i)$ Give one example with a chemical equation for the following reactions:
$(a)$ Substitution reaction.
$(b)$ Saponification reaction.
$(c)$ Combustion reaction.

The high temperature resistance property of $Neoprene$ is due to the presence of a large number of which atom?