Chemistry Organic Chemistry questions from JEE Main 2005.
2 methylbutane on reacting with bromine in the presence of sunlight gives mainly
Acid catalyzed hydration of alkenes except ethene leads to the formation of
Alkyl halides react with dialkyl copper reagents to give
Among the following acids which has the lowest $\mathrm{pK}_{\mathrm{a}}$ value
Amongst the following the most basic compound is
Due to the presence of an unpaired electron, free radicals are:
Elimination of bromine from 2-bromobutane results in the formation of-
In both DNA and RNA, heterocyclic base and phosphate ester linkages are at-
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
p-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form, the compound B. The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is
Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as
Reaction of one molecule of $\mathrm{HBr}$ with one molecule of 1,3 -butadiene at $40^{\circ} \mathrm{C}$ gives predominantly
Tertiary alkyl halides are practically inert to substitution by $\mathrm{S}_{\mathrm{N}}{ }^2$ mechanism because of
The best reagent to convert pent -3- en-2-ol into pent -3-en-2-one is
The decreasing order of nucleophilicity among the nucleophiles 
The reaction  is fastest when X is
Which one of the following methods is neither meant for the synthesis nor for separation of amines?
Which types of isomerism is shown by 2,3-dichlorobutane?