Hydrocarbons

The incorrect statements regarding geometrical isomerism are :
(A) Propene shows geometrical isomerism.
(B) Trans isomer has identical atoms/groups on the opposite sides of the double bond.
(C) Cis-but-2-ene has higher dipole moment than trans-but-2-ene.
(D) 2-methylbut-2-ene shows two geometrical isomers.
(E) Trans-isomer has lower melting point than cis isomer.

Choose the correct answer from the options given below

Given below are two statements :
Statement (I): Neopentane forms only one monosubstituted derivative.
Statement (II): Melting point of neopentane is higher than n-pentane
In the light of the above statements, choose the most appropriate answer from the options given below

The incorrect statements regarding geometrical isomerism are :
(A) Propene shows geometrical isomerism.
(B) Trans isomer has identical atoms/groups on the opposite sides of the double bond.
(C) Cis-but-2-ene has higher dipole moment than trans-but-2-ene.
(D) 2-methylbut-2-ene shows two geometrical isomers.
(E) Trans-isomer has lower melting point than cis isomer.

Choose the correct answer from the options given below

[JEE Main 2025, 22 Jan (Shift 1)]

Identify product [A],[B] and [C] in the following reaction sequence

\({\mathrm{CH}}_{3}-\mathrm{C}\equiv \mathrm{CH}\overset{\mathrm{Pd}/\mathrm{C}}{\underset{{\mathrm{H}}_{2}}{\to }}\left[\mathrm{A}\right]\overset{\left(\mathrm{i}\right){\mathrm{O}}_{3}}{\underset{\left(\mathrm{ii}\right)\mathrm{Zn},{\mathrm{H}}_{2}\mathrm{O}}{\to }}\left[\mathrm{B}\right]+\left[\mathrm{C}\right]\)

Given below are two statements :
Statement (I): Neopentane forms only one monosubstituted derivative.
Statement (II): Melting point of neopentane is higher than n-pentane
In the light of the above statements, choose the most appropriate answer from the options given below

[JEE Main 2025, 2 Apr (Shift 2)]

Identify the incorrect statement

(Memory Based JEE Mains 22/01/2025 ,Shift -1)

When \({\mathrm{C}}_{2}{\mathrm{H}}_{2},{\mathrm{CH}}_{4}\mathrm{and}{\mathrm{C}}_{2}{\mathrm{H}}_{4}\)pass through a test tube which has

ammonical \({\mathrm{Cu}}_{2}{\mathrm{Cl}}_{2}\), find out which gas comes out unaffected from test

tube?

The stereoisomers that are formed by electrophilic addition of bromine to \(trans-but-2-ene\) is/are:

Which of the following alkane cannot be made in good yield by Wurtz reaction?

[NEET 2020]

Given below are two statements:

Statement I : The boiling point of three isomeric pentanes follows the order

n-pentane > isopentane > neopentane

Statement II : When, branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.

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

[NEET 2024]

Which of the following reagent is used for the following reaction?

\({\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{CH}}_{3}\overset{?}{\to }{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}\mathrm{CHO}\)

[JEE Main 2021, 24 Feb (Shift 1)]