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Organic Chemistry Questions

Practice 424 Organic Chemistry questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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424
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93
Easy
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286
Medium
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45
Hard
Practice by Exam:Chemistry(392)CHEMISTRY(14)Mathematics and Science(7)General Science(3)General Awareness(2)Science(2)General Knowledge and General Awareness(2)General Studies(1)

About Organic Chemistry — practice questions, PYQs & concepts

Organic Chemistry is a frequently-tested topic on Chemistry, CHEMISTRY, Mathematics and Science. ExamTest.live currently lists 424 Organic Chemistry questions spanning previous-year papers from 2017 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Organic Chemistry weight in competitive exams

Across our Organic Chemistry question bank, the largest sources are Chemistry (392), CHEMISTRY (14), Mathematics and Science (7), General Science (3) and General Awareness (2). Click any exam chip above to drill down to that exam-specific question set.

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All Organic Chemistry Questions(1–100 of 424)

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Q1hardmcqChemistryAIEEE2026
0% accuracy
Of the five isomeric hexanes, the isomer which can give only two monochlorinated compounds is:
Q2mediummcqChemistryAIEEE2026
0% accuracy
Elimination of bromine from -bromobutane results in the formation of:
Q3hardmcqChemistryAIEEE2026
0% accuracy
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:
Q4mediummcqChemistryAIEEE2026
0% accuracy
-methylbutane on reacting with bromine in the presence of sunlight gives mainly:
Q5mediummcqChemistryAIEEE2026
0% accuracy
Tertiary alkyl halides are practically inert to substitution by mechanism because of:
Q6mediummcqChemistryAIEEE2026
0% accuracy
The decreasing order of nucleophilicity among the following nucleophiles is:
image
Q7mediummcqChemistryAIEEE2026
0% accuracy
Acid catalyzed hydration of alkenes except ethene leads to the formation of:
Q8hardmcqChemistryAIEEE2026
0% accuracy
p-cresol reacts with chloroform in alkaline medium to give compound A, which adds to form compound B. The latter on acidic hydrolysis gives a chiral carboxylic acid. The structure of this carboxylic acid is:
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Q9easymcqChemistryAIEEE2026
0% accuracy
Which one of the following methods is neither meant for the synthesis nor for separation of amines?
Q10mediummcqChemistryCompetitive Exams2026
0% accuracy
In ethylene (C
2
​
H
4
​
), hybridisation of carbon atoms is:
Q11mediummcqChemistryAIEEE2026
0% accuracy
Amongst the following the most basic compound is:
Q12easymcqChemistryAIEEE2026
0% accuracy
Among the following acids which has the lowest value?
Q13easymcqChemistryAIEEE2026
0% accuracy
Alkyl halides react with dialkyl copper reagents (Gilman reagents) to give:
Q14mediummcqChemistryAIEEE2026
0% accuracy
The reaction image is fastest when is:
Q15mediummcqChemistryAIEEE2026
0% accuracy
The best reagent to convert pent- -en- -ol into pent- -en- -one is:
Q16mediummcqChemistryAIEEE2026
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Reaction of one molecule of with one molecule of -butadiene at gives predominantly:
Q17mediummcqChemistryAIEEE2026
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Which type of isomerism is shown by -dichlorobutane?
Q18mediummcqChemistryAIEEE2026
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An organic compound having molecular mass contains , and rest Oxygen. On heating, it gives along with a solid residue that gives a violet color with alkaline copper sulfate. The compound is:
Q19mediummcqChemistryAIEEE 20072026
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Which one of the following conformations of cyclohexane is chiral?
Q20mediummcqChemistryAIEEE 20072026
0% accuracy
Presence of a nitro group in a benzene ring:
Q21mediummcqChemistryAIEEE 20072026
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In the following sequence of reactions, , the compound 'D' is:
Q22mediummcqChemistryAIEEE 20062026
0% accuracy
. The decreasing order of the rate of the above reaction with nucleophiles () A to D is:
Q23mediummcqChemistryCompetitive Exam2026
100% accuracy
In the manufacture of Vanaspati ghee from vegetable oils, which among the following gas is used?
Q24mediummcqGeneral ScienceSSC CGL2026
0% accuracy
The common name of dichlorodifluoromethane is ______.
Q25mediummcqChemistryNEET 20192026
0% accuracy
The most suitable reagent for the following conversion, is:

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Q26easymcqChemistryNEET 20192026
0% accuracy
The number of sigma () and pi () bonds in pent-2-en-4-yne is:
Q27mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
0% accuracy
Select the name of the hydrocarbon with the structural formula .
Q28mediummcqChemistrySSC CGL2026
0% accuracy
How many oxygen atoms are there in one molecule of ethyl alcohol?
Q29easymcqChemistryNEET (UG) 20172026
0% accuracy
Which one is the most acidic compound?image
Q30mediummcqChemistryAIEEE 20072026
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The IUPAC name of the compound image is:
Q31mediummcqChemistryNEET (UG) 20172026
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The IUPAC name of the compound image is:
Q32mediummcqChemistryAIEEE 20062026
0% accuracy
The structure of the major product formed in the following reaction is:
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Q33easymcqChemistryNEET 20192026
0% accuracy
The correct order of the basic strength of methyl substituted amines in aqueous solution is:
Q34mediummcqChemistryNEET 20192026
0% accuracy
Among the following, the reaction that proceeds through an electrophilic substitution, is:
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Q35mediummcqChemistryNEET 20192026
0% accuracy
The major product of the following reaction is:
[Reaction of Phthalic acid with NH3 and strong heating]
Q36mediummcqChemistryAIEEE 20072026
0% accuracy
The compound formed as a result of oxidation of ethyl benzene by is:
Q37mediummcqChemistryAIEEE 20072026
0% accuracy
In the chemical reaction, , the compound and are respectively:
Q38mediummcqChemistryNEET 20192026
0% accuracy
The structure of intermediate in the following reaction is:
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Q39mediummcqChemistryAIEEE 20072026
0% accuracy
The reaction of toluene with in presence of gives predominantly:
Q40mediummcqChemistryAIEEE 20072026
0% accuracy
Which one of the following is the strongest base in aqueous solution?
Q41mediummcqChemistryNEET (UG) 20172026
0% accuracy
The heating of phenyl-methyl ethers with produces:
Q42mediummcqChemistryNEET (UG) 20172026
0% accuracy
The most suitable method of separation of mixture of ortho and para-nitrophenols is:
Q43easymcqChemistryNEET (UG) 20172026
0% accuracy
The correct statement regarding electrophile is:
Q44mediummcqChemistryNEET (UG) 20172026
0% accuracy
Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?
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Q45easymcqChemistryAIEEE 20062026
0% accuracy
The term anomers of glucose refers to:
Q46mediummcqChemistryAIEEE 20072026
0% accuracy
Which of the following molecules is expected to rotate the plane of plane polarized light?
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Q47mediummcqChemistryAIEEE 20062026
0% accuracy
The structure of the compound that gives a tribromo derivative on treatment with bromine water is:
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Q48mediummcqChemistryAIEEE 20062026
0% accuracy
The correct order of increasing acid strength of the compounds:(a) (b) (c) (d) (Isopropyl acetic acid)
Q49hardmcqChemistryAIEEE 20062026
0% accuracy
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2-fluoroethanol is:
Q50easymcqChemistryNEET (UG) 20172026
0% accuracy
Which of the following reactions is appropriate for converting acetamide to methanamine?
Q51easymcqChemistryNEET (UG) 20172026
0% accuracy
Which one is the correct order of acidity?
Q52mediummcqChemistryNEET (UG) 20172026
0% accuracy
The correct increasing order of basic strength for the following compounds is:
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Q53easymcqChemistryAIEEE 20062026
0% accuracy
The electrophile involved in this reaction is:
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Q54easymcqChemistryAIEEE 20062026
0% accuracy
The pyrimidine bases present in are:
Q55easymcqChemistryAIEEE 20062026
0% accuracy
Phenyl magnesium bromide reacts with methanol to give:
Q56hardmcqChemistryNEET (UG) 20172026
0% accuracy
Consider the reactions: Identify A, X, Y, and Z.
Q57hardmcqChemistryAIEEE 20062026
0% accuracy
The alkene formed as a major product in the elimination reaction of a quaternary ammonium hydroxide (Hofmann elimination) is:[Image showing N-ethyl-N,N-dimethylbutan-1-aminium hydroxide heated]
Q58mediummcqChemistryNEET 20192026
0% accuracy
An alkene "A" on reaction with O
3
​
and Zn–H
2
​
O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:
Q59mediummcqChemistryAIEEE 20062026
0% accuracy
The increasing order of stability of the following free radicals is:
Q60easymcqChemistryAIEEE 20062026
0% accuracy
The IUPAC name of the compound shown below is:
image
Q61easymcqChemistryAIEEE 20062026
0% accuracy
Fluorobenzene () can be synthesized in the laboratory:
Q62mediummcqGeneral AwarenessSSC CGL2026
0% accuracy
Ethanol reacts with sodium leading to the evolution of which gas?
Q63mediummcqGeneral ScienceSSC CGL2026
0% accuracy
Pentane has _________ structural isomers.
Q64mediummcqChemistryAIEEE 20072026
0% accuracy
Which of the following reactions will yield ?
Q65mediummcqChemistryNEET (UG) 20172026
0% accuracy
Predict the correct intermediate and product in the following reaction:
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Q66mediummcqChemistryWBCS Prelims2026
0% accuracy
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Q67mediummcqChemistryCompetitive Exam2026
100% accuracy
______ is an anaesthetic agent.
Q68mediummcqChemistryNEET 20192026
0% accuracy
The compound that is most difficult to protonate is:
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Q69mediummcqChemistryNEET (UG) 20172026
0% accuracy
Identify A and predict the type of reaction when 3-bromoanisole reacts with :
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Q70mediummcqChemistryAIEEE 20062026
0% accuracy
reacts with under anhydrous conditions at room temperature to give:
Q71mediummcqChemistryAIEEE 20062026
0% accuracy
Reaction of trans-2-phenyl-1-bromocyclopentane with alcoholic produces:
Q72mediummcqChemistryAIEEE 20062026
0% accuracy
Among the following, the one that gives positive iodoform test upon reaction with and is:
Q73mediummcqChemistryAIEEE 20062026
0% accuracy
The increasing order of the rate of addition to compounds A – D is:(A) (B) (C) (D)
Q74mediummcqChemistryNEET 20212026
The product formed in the following chemical reaction is:
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Options:
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image
Q75mediummcqChemistryNEET 20212026
The reagent 'R' in the given sequence of chemical reaction is:
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Q76mediummcqChemistryNEET 20212026
The major product of the following chemical reaction is:
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Q77mediummcqChemistryNEET 20212026
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
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Q78easymcqChemistryNEET 20212026
The compound which shows metamerism is:
Q79easymcqChemistryNEET 20212026
Match List - I with List - II:
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image
Q80easymcqChemistryNEET 20212026
The correct sequence of bond enthalpy of ' ' bond is:
Q81mediummcqChemistryNEET 2020 E12026
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following?
Q82easymcqChemistryNEET 20212026
Dihedral angle of least stable conformer of ethane is:
Q83mediummcqCHEMISTRYNEET 20192026
Mark the reaction among the following that does not give benzoic acid as the major product:
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Q84mediummcqCHEMISTRYNEET 20192026
Among the following, which hydrolysis reaction occurs at the slowest rate?
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Q85easymcqChemistryNEET 20212026
The correct structure of 2,6-Dimethyl-dec-4-ene is:
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image
Q86easymcqChemistryNEET 20212026
The major product formed in dehydrohalogenation reaction of 2-Bromopentane is pent-2-ene. This product formation is based on?
Q87easymcqCHEMISTRYNEET 20192026
The vapor of secondary alcohol passed over heated copper at yield:
Q88mediummcqCHEMISTRYNEET 20192026
What is the correct order of the carboxylic acids' strength?
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Q89mediummcqCHEMISTRYNEET 20192026
A few reactions are given below:
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Select the reaction type for the above reactions:
Q90easymcqCHEMISTRYNEET 20192026
The alkane that gives only one monochloro product on chlorination with in presence of diffused sunlight is:
Q91mediummcqCHEMISTRYNEET 20192026
Which amine reacts with Hinsberg's reagent to produce an alkali insoluble product?
image
Q92hardmcqCHEMISTRYNEET 20192026
In the reaction . The number of () bonds present in the product (A) is:
Q93mediummcqCHEMISTRYNEET 20192026
The most stable carbocation among the following is:
Q94mediummcqCHEMISTRYNEET 20192026
The IUPAC name of the compound is:
image
Q95easymcqCHEMISTRYNEET 20192026
The total number of pi-bond electrons in the structure of anthracene () is:
image
Q96hardmcqCHEMISTRYNEET 20192026
A reagent that can distinguish cis-cyclopenta-1,2-diol from the trans-isomer is:
Q97easymcqChemistryNEET 20232026
Consider the following reaction and identify the product (P):
image
Options:
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Q98mediummcqChemistryNEET 20232026
Consider the following compounds/species:
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The number of compounds/species which obey Huckel’s rule is:
Q99mediummcqChemistryNEET 20212026
What is the IUPAC name of the organic compound formed in the following chemical reaction?
Q100mediummcqCHEMISTRYNEET 20192026
Which structure corresponds to the IUPAC name 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?
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Organic Chemistry questions are commonly asked in Chemistry, CHEMISTRY, Mathematics and Science, General Science, General Awareness. You can filter by exam using the links above.
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Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.