JEE Mains · Chemistry · STD 11 - 8.2 Organic chemistry isomerism
The following structures are

- A enantiomers.
- B identical molecules.
- C diastereomers.
- D meso compounds.
Answer & Solution
Correct Answer
(B) identical molecules.
Step-by-step Solution
Detailed explanation
The given structures have a central carbon atom bonded to four groups: \(-\text{Br}\), \(-\text{Cl}\), \(-\text{CH}_3\), and \(-\text{Me}\). Since \(-\text{CH}_3\) and \(-\text{Me}\) both represent the same alkyl group (methyl), the central carbon atom is bonded to two identical…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Hemoglobin contains \(0.34 \%\) of iron by mass. The number of \(Fe\) atoms in \(3.3 g\) of hemoglobin is.(Given : Atomic mass of \(Fe\) is \(56\,u , N _{ A }\) in \(6.022\) \(\left.\times 10^{23} mol ^{-1}\right)\)JEE Mains 2022 Hard
- For the following reaction at \(50°\)C and at \(2\) atm pressure,
\(2N_2O_5(g) \rightleftharpoons 2N_2O_4(g)+O_2(g)\)
\(N_2O_5\) is \(50\%\) dissociated.
The magnitude of standard free energy change at this temperature is \(x\).
\(x=\) ______ J mol\(^{-1}\) [Nearest integer].
Given: \(R=8.314\) J mol\(^{-1}\) K\(^{-1}\), \(\log 2=0.30\), \(\log 3=0.48\), \(\ln 10=2.303\), \(°C+273=K\)JEE Mains 2026 Hard - The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of _______.JEE Mains 2025 Easy
- Consider the following standard electrode potentials (\(E^o\) in volts) in aqueous solution
Based on these data, which of the following statements is correct ?Element \(M^{3+}/ M\) \(M^+/M\) \(Al\) \(-1.66\) \(+0.55\) \(Tl\) \(+1.26\) \(-0.34\) JEE Mains 2017 Hard - Consider the following sequence of reactions to produce major product (A)

Molar mass of product \((\mathrm{A})\) is _______ \(\mathrm{g} \mathrm{mol}^{-1}\).
(Given molar mass in \(\mathrm{g} \mathrm{mol}^{-1}\) of \(\mathrm{C}: 12, \mathrm{H}: 1, \mathrm{O}: 16, \mathrm{Br}: 80, \mathrm{~N}: 14, \mathrm{P}: 31\) )JEE Mains 2025 Medium - Which one of the following is an oxide ?JEE Mains 2017 Hard
More PYQs from JEE Mains
- If \(z ^{2}+ z +1=0, z \in C\), then \(\left|\sum_{ n =1}^{15}\left( z ^{ n }+(-1)^{ n } \frac{1}{ z ^{ n }}\right)^{2}\right|\) is equal toJEE Mains 2022 Hard
- Experimentally it is found that \(12.8\,eV\) energy is required to separate a hydrogen atom into a proton and an electron. So the orbital radius of the electron in a hydrogen atom is \(\frac{9}{ x } \times 10^{-10}\,m\). The value of the \(x\) is \(\left(1\,eV =1.6 \times 10^{-19}\,J , \frac{1}{4 \pi \epsilon_0}=9 \times 10^9\,Nm ^2 / C ^2\right.\) and electronic charge \(=1.6 \times 10^{-19}\,J\,C\) )JEE Mains 2023 Medium
- \(\begin{aligned}
& \mathrm{S}(\mathrm{~g})+\frac{3}{2} \mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{SO}_3(\mathrm{~g})+2 x \mathrm{kcal} \\
& \mathrm{SO}_2(\mathrm{~g})+\frac{1}{2} \mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{SO}_3(\mathrm{~g})+y \mathrm{kcal}
\end{aligned}\)
The heat of formation of \(\mathrm{SO}_2(\mathrm{~g})\) is given by :JEE Mains 2025 Medium - The vector equation of the plane through the line of intersection of the planes \(x + y + z = 1\) and \(2x + 3y + 4z = 5\) which is perpendicular to the plane \(x -y + z = 0\) isJEE Mains 2019 Hard
- Let \(\alpha, \beta\) be the roots of the equation \(x^2-x+2=0\) with \(\operatorname{Im}(\alpha)>\operatorname{Im}(\beta)\). Then \(\alpha^6+\alpha^4+\beta^4-5 \alpha^2\) is equal toJEE Mains 2024 Hard
- An optically active alkyl bromide C\(_4\)H\(_9\)Br, reacts with ethanolic KOH to form major compound [A] which reacts with bromine to give compound [B]. Compound [B] reacts with ethanolic KOH and sodamide to give compound [C]. One molecule of water adds to compound [C] on warming with mercuric sulphate and dilute sulphuric acid at \(333\) K to form compound [D]. The functional group in compound D will be confirmed by :JEE Mains 2026 Hard