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Free download in PDF Organic Chemistry Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Identify the one which does not come under the organic addition reaction?
[A]
Hydration
[B]
Dehydration
[C]
Halogenation
[D]
Hydrohalogenation
(2)
Choose the correct one which will react faster in the SN2 nucleophilic substitution reaction?
[A]
CH2 – CH = CH2 = Br
[B]
CH2 = CH – CH2 – Br
[C]
CH2 = CH – CH2 = Br
[D]
CH = CH2 – CH2 – Br
Answer: CH2 = CH – CH2 – Br
(3)
What will be the reactivity of chlorobenzene in an electrophilic substitution reaction with benzene?
[A]
Reacts very slowly than benzene
[B]
Reacts in the same way as benzene
[C]
Reacts faster than benzene
[D]
Does not react with benzene
Answer: Reacts very slowly than benzene
(4)
Alcohol on refluxing with Cr2O7 gives ____________
[A]
Ester
[B]
Aldehyde
[C]
Sugar
[D]
Carboxylic acid
(5)
Alkene under high temperature and high-pressure forms ___________
[A]
Alcohol
[B]
Polyalkyne
[C]
Polyalkane
[D]
Polyalkene
(6)
Identify the one which on reaction with carboxylic acid at high temperature gives Ester?
[A]
Ketone
[B]
Alcohol
[C]
Aldehyde
[D]
Sugars
(7)
Select the correct statement regarding carboxylic acids.
[A]
They form acyl chlorides on reaction with PCl5
[B]
Aldehydes in the presence of H±/Cr2O7 forms carboxylic acids
[C]
They combine with alcohols to form esters
[D]
Upon polymerization, they form polymers
Answer: Upon polymerization, they form polymers
(8)
Primary alcohols undergo what reaction to form alkenes?
[A]
Elimination
[B]
Oxidation
[C]
Reduction
[D]
Hydrolysis
(9)
Carbonyl compounds especially ketones undergo reduction to form __________
[A]
Primary alcohols
[B]
Secondary alcohols
[C]
Alkanes
[D]
Alkenes
Answer: Secondary alcohols
(10)
Primary amides get converted into primary amines by _________
[A]
Addition
[B]
Oxidation
[C]
Reduction
[D]
Acylation
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