Organic Chemistry: Some Basic Principles and Techniques PYQs
All NEET previous year questions from Organic Chemistry: Some Basic Principles and Techniques — with explanations.
Showing 10 questions free. Sign up to attempt all 50 questions with AI explanations and progress tracking.
The pair of molecules that are metamers among the following is:
The correct IUPAC name of the following compound is:
During Lassaigne’s test, the elements present in an organic compound are converted from:
In a test tube containing a salt, a few drops of dilute H₂SO₄ was added, which gave colourless vapours having the smell of vinegar. The vapours turned blue litmus paper red. Identify the correct anion:
Which one of the following compounds can exist as cis-trans isomers? (1) Pent-1-ene (2) 2-Methylhex-2-ene (3) 1,1-Dimethylcyclopropane (4) 1,2-Dimethylcyclohexane
Match List I with List II Choose the correct answer from the options given below :
Total number of possible isomers (both structural as well as stereoisomers) of cyclic ethers of molecular formula O is :
Which one of the following reactions does NOT belong to “Lassaigne’s test”?
On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as:
Match List I with List II.
The most stable carbocation among the following is:
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is ____.Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is ____.
What is Y in the above reaction?
Which compound amongst the following is not an aromatic compound?
The Kjeldahl's method for estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?
The compound which shows metamerism is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of ?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The most stable carbocation among the following is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H₂SO₄. The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following molecules represents the order of hybridisation sp², sp², sp, sp from left to right atoms?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following carbocations is expected to be most stable?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following is correct with respect to –I effect of the substituents? (R = alkyl)
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The correct statement regarding electrophile is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The correct increasing order of basic strength for the following compounds is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
An example of a sigma bonded organometallic compound is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
In pyrrole, the electron density is maximum on:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which among the given molecules can exhibit tautomerism?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following statements is not correct for a nucleophile?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Two possible stereo-structures of , which are optically active, are called:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
In an S1 reaction on chiral centres, there is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The structure of isobutyl group in an organic compound is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The order of stability of the following tautomeric compounds is
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following species is not electrophilic in nature?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following conformers for ethylene glycol is most stable?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The IUPAC name of the compound having the formula is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The state of hybridization of , , and of the hydrocarbon shown below is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
In the hydrocarbon shown below, the state of hybridization of carbons 1, 3 and 5 are in the following sequence.
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
How many stereoisomers does the molecule CH₃CH=CHCH₂CHBrCH₃ have?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The stability of carbanions in the following species is in the order of
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The basic strength of the following carbanions a, b and c is in the order of
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following compounds is optically active?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
In a set of reactions, propionic acid yielded a compound D. The structure of D would be:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which of the following is not chiral?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The IUPAC name of the following compound is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which amongst the following is the most stable carbocation?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Which one of the following pairs represents stereoisomerism?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The chirality of the following compound is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Names of some compounds are given. Which one is not correct in IUPAC system?
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
The best method for the separation of naphthalene and benzoic acid from their mixture is:
Sign up to attempt this question
Track your answers, get AI explanations & see your accuracy.
Get AI Explanations for Every PYQ
Sign up free and practice all 50 questions in Organic Chemistry: Some Basic Principles and Techniques with detailed AI step-by-step solutions, weak topic detection, and progress tracking.