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Organic Chemistry Questions

Practice 399 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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399
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90
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268
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41
Hard
Practice by Exam:Chemistry(380)CHEMISTRY(14)General Knowledge and General Awareness(2)Science(2)General Knowledge(1)

About Organic Chemistry — practice questions, PYQs & concepts

Organic Chemistry is a frequently-tested topic on Chemistry, CHEMISTRY, General Knowledge and General Awareness. ExamTest.live currently lists 399 Organic Chemistry questions spanning previous-year papers from 2026 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 (380), CHEMISTRY (14), General Knowledge and General Awareness (2), Science (2) and General Knowledge (1). 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 399)

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Q1mediummcqChemistryAIEEE2026
0% accuracy
Elimination of bromine from -bromobutane results in the formation of:
Q2hardmcqChemistryAIEEE2026
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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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Q3mediummcqChemistryAIEEE2026
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Which type of isomerism is shown by -dichlorobutane?
Q4mediummcqChemistryAIEEE2026
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The decreasing order of nucleophilicity among the following nucleophiles is:
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Q5hardmcqChemistryAIEEE2026
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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:
Q6mediummcqChemistryAIEEE2026
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The reaction image is fastest when is:
Q7easymcqChemistryAIEEE2026
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Among the following acids which has the lowest value?
Q8easymcqChemistryAIEEE2026
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Alkyl halides react with dialkyl copper reagents (Gilman reagents) to give:
Q9hardmcqChemistryAIEEE2026
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Of the five isomeric hexanes, the isomer which can give only two monochlorinated compounds is:
Q10mediummcqChemistryAIEEE2026
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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:
Q11mediummcqChemistryAIEEE2026
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Reaction of one molecule of with one molecule of -butadiene at gives predominantly:
Q12easymcqChemistryAIEEE2026
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Which one of the following methods is neither meant for the synthesis nor for separation of amines?
Q13mediummcqChemistryAIEEE2026
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Acid catalyzed hydration of alkenes except ethene leads to the formation of:
Q14mediummcqChemistryAIEEE2026
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Amongst the following the most basic compound is:
Q15mediummcqChemistryAIEEE2026
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The best reagent to convert pent- -en- -ol into pent- -en- -one is:
Q16mediummcqChemistryAIEEE2026
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Tertiary alkyl halides are practically inert to substitution by mechanism because of:
Q17mediummcqChemistryAIEEE2026
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-methylbutane on reacting with bromine in the presence of sunlight gives mainly:
Q18hardmcqChemistryNEET (UG) 20172026
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Consider the reactions: Identify A, X, Y, and Z.
Q19mediummcqChemistryAIEEE 20072026
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The compound formed as a result of oxidation of ethyl benzene by is:
Q20mediummcqChemistryAIEEE 20072026
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The IUPAC name of the compound image is:
Q21mediummcqChemistryAIEEE 20072026
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In the chemical reaction, , the compound and are respectively:
Q22hardmcqChemistryAIEEE 20062026
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Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2-fluoroethanol is:
Q23mediummcqChemistryNEET (UG) 20172026
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Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?
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Q24easymcqChemistryNEET (UG) 20172026
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Which one is the most acidic compound?image
Q25mediummcqChemistryNEET 20192026
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The compound that is most difficult to protonate is:
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Q26mediummcqChemistryAIEEE 20072026
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Which one of the following conformations of cyclohexane is chiral?
Q27mediummcqChemistryNEET 20192026
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Among the following, the reaction that proceeds through an electrophilic substitution, is:
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Q28mediummcqChemistryAIEEE 20072026
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Presence of a nitro group in a benzene ring:
Q29mediummcqChemistryNEET (UG) 20172026
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The correct increasing order of basic strength for the following compounds is:
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Q30mediummcqChemistryAIEEE 20072026
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Which one of the following is the strongest base in aqueous solution?
Q31easymcqChemistryAIEEE 20062026
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The pyrimidine bases present in are:
Q32mediummcqChemistryAIEEE 20072026
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Which of the following molecules is expected to rotate the plane of plane polarized light?
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Q33mediummcqChemistryAIEEE 20072026
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Which of the following reactions will yield ?
Q34mediummcqChemistryAIEEE 20062026
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Among the following, the one that gives positive iodoform test upon reaction with and is:
Q35mediummcqChemistryNEET 20192026
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The structure of intermediate in the following reaction is:
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Q36easymcqChemistryNEET 20192026
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The correct order of the basic strength of methyl substituted amines in aqueous solution is:
Q37mediummcqChemistryNEET 20192026
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The major product of the following reaction is:
[Reaction of Phthalic acid with NH3 and strong heating]
Q38easymcqChemistryNEET 20192026
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The number of sigma () and pi () bonds in pent-2-en-4-yne is:
Q39mediummcqChemistryAIEEE 20072026
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In the following sequence of reactions, , the compound 'D' is:
Q40easymcqChemistryAIEEE 20062026
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The electrophile involved in this reaction is:
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Q41mediummcqChemistryNEET (UG) 20172026
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Identify A and predict the type of reaction when 3-bromoanisole reacts with :
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Q42mediummcqChemistryNEET (UG) 20172026
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The IUPAC name of the compound image is:
Q43easymcqChemistryNEET (UG) 20172026
0% accuracy
The correct statement regarding electrophile is:
Q44mediummcqChemistryNEET 20192026
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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:
Q45mediummcqChemistryAIEEE 20072026
0% accuracy
The reaction of toluene with in presence of gives predominantly:
Q46hardmcqChemistryAIEEE 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]
Q47mediummcqChemistryAIEEE 20062026
0% accuracy
Reaction of trans-2-phenyl-1-bromocyclopentane with alcoholic produces:
Q48mediummcqChemistryAIEEE 20062026
0% accuracy
The structure of the major product formed in the following reaction is:
image
Q49mediummcqChemistryNEET (UG) 20172026
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The most suitable method of separation of mixture of ortho and para-nitrophenols is:
Q50easymcqChemistryNEET (UG) 20172026
0% accuracy
Which of the following reactions is appropriate for converting acetamide to methanamine?
Q51mediummcqChemistryNEET (UG) 20172026
0% accuracy
The heating of phenyl-methyl ethers with produces:
Q52easymcqChemistryAIEEE 20062026
0% accuracy
Phenyl magnesium bromide reacts with methanol to give:
Q53mediummcqChemistryAIEEE 20062026
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The increasing order of stability of the following free radicals is:
Q54mediummcqChemistryAIEEE 20062026
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. The decreasing order of the rate of the above reaction with nucleophiles () A to D is:
Q55mediummcqChemistryNEET (UG) 20172026
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Predict the correct intermediate and product in the following reaction:
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Q56easymcqChemistryAIEEE 20062026
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The IUPAC name of the compound shown below is:
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Q57easymcqChemistryAIEEE 20062026
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Fluorobenzene () can be synthesized in the laboratory:
Q58easymcqChemistryAIEEE 20062026
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The term anomers of glucose refers to:
Q59mediummcqChemistryAIEEE 20062026
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The increasing order of the rate of addition to compounds A – D is:(A) (B) (C) (D)
Q60mediummcqChemistryAIEEE 20062026
0% accuracy
reacts with under anhydrous conditions at room temperature to give:
Q61mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
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Select the name of the hydrocarbon with the structural formula .
Q62mediummcqChemistryAIEEE 20062026
0% accuracy
The structure of the compound that gives a tribromo derivative on treatment with bromine water is:
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Q63mediummcqChemistryNEET 20192026
0% accuracy
The most suitable reagent for the following conversion, is:

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Q64mediummcqChemistryAIEEE 20062026
0% accuracy
The correct order of increasing acid strength of the compounds:(a) (b) (c) (d) (Isopropyl acetic acid)
Q65easymcqChemistryNEET (UG) 20172026
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Which one is the correct order of acidity?
Q66mediummcqChemistryNEET 20222026
Statement I: Primary aliphatic amines react with to give unstable diazonium salts.Statement II: Primary aromatic amines react with to form diazonium salts which are stable even above .
Q67mediummcqChemistryNEET 20222026

What is in the above reaction?
Q68mediummcqChemistryNEET 20222026
Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.Statement II: -nitrophenol, -nitrophenol and -nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.
Q69mediummcqChemistryNEET 20212026
The reagent 'R' in the given sequence of chemical reaction is:
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Q70easymcqChemistryNEET 20222026
The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?
(1)
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Q71easymcqChemistryNEET 20212026

Identify the missing reagent:
Q72mediummcqChemistryNEET 20212026
The product formed in the following chemical reaction is:
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Options:
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Q73mediummcqChemistryNEET 20212026
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
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Q74mediummcqChemistryNEET 20212026
The intermediate compound "X" in the following chemical reaction is:
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Q75easymcqChemistryNEET 20212026
The major product formed in dehydrohalogenation reaction of 2-Bromopentane is pent-2-ene. This product formation is based on?
Q76easymcqChemistryNEET 20212026
The correct sequence of bond enthalpy of ' ' bond is:
Q77easymcqChemistryNEET 20222026
Which compound amongst the following is not an aromatic compound?
(1)
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Q78easymcqChemistryNEET 20212026
Match List - I with List - II:
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Q79mediummcqChemistryNEET 20212026
The major product of the following chemical reaction is:
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Q80easymcqChemistryNEET 20212026
Dihedral angle of least stable conformer of ethane is:
Q81mediummcqChemistryNEET 2020 E12026
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following?
Q82easymcqChemistryNEET 20212026
The compound which shows metamerism is:
Q83easymcqCHEMISTRYNEET 20192026
The total number of pi-bond electrons in the structure of anthracene () is:
image
Q84mediummcqCHEMISTRYNEET 20192026
The most stable carbocation among the following is:
Q85easymcqChemistryNEET 20212026
The correct structure of 2,6-Dimethyl-dec-4-ene is:
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image
Q86mediummcqCHEMISTRYNEET 20192026
Mark the reaction among the following that does not give benzoic acid as the major product:
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Q87easymcqCHEMISTRYNEET 20192026
The vapor of secondary alcohol passed over heated copper at yield:
Q88mediummcqCHEMISTRYNEET 20192026
Among the following, which hydrolysis reaction occurs at the slowest rate?
image
Q89hardmcqCHEMISTRYNEET 20192026
In the reaction . The number of () bonds present in the product (A) is:
Q90hardmcqCHEMISTRYNEET 20192026
The major products C and D formed in the following reaction respectively are:
Q91hardmcqCHEMISTRYNEET 20192026
A reagent that can distinguish cis-cyclopenta-1,2-diol from the trans-isomer is:
Q92hardmcqChemistryNEET 20232026
Identify the major product obtained in the following reaction:
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image
Q93hardmcqChemistryNEET 20232026
Complete the following reaction:The product C is:
image
(a)
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Q94mediummcqChemistryNEET 20222026
Which of the following sequence of reactions is suitable to synthesize chlorobenzene?
Q95mediummcqChemistryNEET 20212026
What is the IUPAC name of the organic compound formed in the following chemical reaction?
Q96mediummcqCHEMISTRYNEET 20192026
The IUPAC name of the compound is:
image
Q97mediummcqCHEMISTRYNEET 20192026
What is the correct order of the carboxylic acids' strength?
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Q98mediummcqCHEMISTRYNEET 20192026
Which structure corresponds to the IUPAC name 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?
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Q99mediummcqCHEMISTRYNEET 20192026
A few reactions are given below:
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Select the reaction type for the above reactions:
Q100easymcqCHEMISTRYNEET 20192026
The alkane that gives only one monochloro product on chlorination with in presence of diffused sunlight is:
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