General Organic Chemistry — JEE Main PYQs

Functional group present in sulphonic acid is :

Which of the following is metamer of the given compound (X) ?

The incorrect statement regarding the geometrical isomers of 2-butene is:

Number of carbocation from the following that are not stabilized by hyperconjugation is ______.

The shape of carbocation is :

IUPAC name of following hydrocarbon (X) is :

Total number of optically active compounds from the following is ____ .

Total number of aromatic compounds among the following compounds is ____.

Given below are two statements:

Statement I:
IUPAC name of Compound A is 4-chloro-1, 3-dinitrobenzene:

Statement II:
IUPAC name of Compound B is 4-ethyl-2-methylaniline.

In the light of the above statements, choose the most appropriate answer from the options given below:

In the given compound, the number of $2^{\circ }$ carbon atom/s is ______ .

Which of the following are aromatic?
A.
B.
C.
D.

The number of optical isomers in following compound is : ______.

Relative stability of the contributing structures is :

How many compounds among the following compounds show inductive, mesomeric as well as hyperconjugation effects?
,

The correct stability order of the following resonance structures of ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}$ is

Total number of stereo isomers possible for the given structure:

Highest enol content will be shown by :

IUPAC name of following compound (P) is :

Among the given organic compounds, the total number of aromatic compounds is
(A) (see structure)
(B) (see structure)
(C) (see structure)
(D) (see structure)

The functional group that shows negative resonance effect is:

Total number of isomeric compounds (including stereoisomers) formed by monochlorination of 2-methylbutane is ____.

Ionic reactions with organic compounds proceed through:
(A) Homolytic bond cleavage
(B) Heterolytic bond cleavage
(C) Free radical formation
(D) Primary free radical
(E) Secondary free radical

Choose the correct answer from the options given below:

Number of optical isomers possible for 2-chlorobutane ____

The order of relative stability of the contributing structure is:

Choose the correct answer from the options given below:

The molecular formula of second homologue in the homologous series of mono carboxylic acids is ______.

Bond line formula of HOCH(CN)₂ is:

The incorrect statement regarding conformations of ethane is:

Total number of compounds with Chiral carbon atoms from following is $\_\_\_\_$.

The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

The interaction between $\pi$ bond and lone pair of electrons present on an adjacent atom is responsible for

Number of compounds among the following which contain sulphur as heteroatom is ____.

Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine

The ascending acidity order of the following H atoms is

According to IUPAC system, the compound is named as

Which one of the following will show geometrical isomerism?

A species having carbon with sextet of electrons and can act as electrophile is called

Given below are two statements:
Statement I: IUPAC name of $\mathrm{HO}-{\mathrm{CH}}_2-{\left({\mathrm{CH}}_2\right)}_3-{\mathrm{CH}}_2-{\mathrm{COCH}}_3$ is 7-hydroxyheptan-2-one.
Statement II: 2-oxoheptan-7-ol is the correct IUPAC name for above compound.
In the light of th …

Which of the following molecule/species is most stable?

Structure of 4-Methylpent-2-enal is

Identify structure of 2,3-dibromo-1-phenylpentane.

IUPAC name of following compound is

The correct stability order of carbocations is

Number of geometrical isomers possible for the given structure is/are ____.

2-chlorobutane $+{\mathrm{Cl}}_2\to {\mathrm{C}}_4{\mathrm{H}}_8{\mathrm{Cl}}_2$ (isomers) Total number of optically active isomers shown by ${\mathrm{C}}_4{\mathrm{H}}_8{\mathrm{Cl}}_2$, obtained in the above reaction is ____.

The correct IUPAC nomenclature for the following compound is

The decreasing order of hydride affinity for following carbocations is:
A. (see structure)
B. (see structure)
C. (see structure)
D. (see structure)
Choose the correct answer from the options given below:

The number of hyperconjugation structures involved to stabilize carbocation formed in the above reaction is ____.

Given below are two statements:
Statement I: Tropolone is an aromatic compound and has $8\pi$ electrons.
Statement II: $\pi$ electrons of $>\mathrm{C}=\mathrm{O}$ group in tropolone is involved in aromaticity.
In the light of the above statements, choose the correct answer …

Resonance in carbonate ion $\left({\mathrm{CO}}_3^{2-}\right)$ is

Which of the following is true?

The total number of chiral compound/s from the following is ____.

Which of the following conformations will be the most stable?