Wine (alcoholic beverages) contains

What is obtained by the oxidation of isopropyl alcohol?

The reaction of $C_2H_5OH$ with $H_2SO_4$ does not give

Ethyl alcohol can be used in the preparation of which of the following?

Arrange the following alcohols in increasing order of reactivity towards elimination reaction:
$(I)$ $NO_2-CH_2-CH_2-CH_2-CH_2OH$
$(II)$ $CH_3-CH_2-CH(NO_2)-CH_2OH$
$(III)$ $CH_3-CH(NO_2)-CH_2-CH_2OH$
$(IV)$ $CH_3-CH_2-CH_2-CH_2OH$
Select the answer from the codes given below:

Which one of the following will most readily dehydrate in acidic condition?