WBJEE · Chemistry · General Organic Chemistry
The IUPAC name of the following molecule is

- A 5,6 -dimethyihept-2-ene
- B 2,3 -dimethyhept-5-ene
- C 5,6 -dimethyhept-3-ene
- D \(5-\) iso-propylhex-2-ene
Answer & Solution
Correct Answer
(A) 5,6 -dimethyihept-2-ene
Step-by-step Solution
Detailed explanation
The longest chain contains 7 C-atom, so the root word is hept and suffix -ene is added for double bond along with its position. Since, two methyl goups are also present at 5 and 6 positions, so the correct IUPAC name of the compound is 5.6 -dimethylhept-2-ene.
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
- \({ }_5 \mathrm{~B}^{10}+{ }_2 \mathrm{He}^4 \rightarrow \mathrm{X}+{ }_{\mathrm{o}} \mathrm{n}^1\)
In the above nuclear reaction ' X ' will beWBJEE 2025 Easy - In which of the following mixed aqueous solutions, \(\mathrm{pH}=\mathrm{p} K_{a}\) at equilibrium?
(1) \(100 \mathrm{mL}\) of \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}+100 \mathrm{mL}\) of \(0.1 \mathrm{MCH}_{3} \mathrm{COONa}\)
(2) \(100 \mathrm{mL}\) of \(0.1 \mathrm{MCH}_{3} \mathrm{COOH}+50 \mathrm{mL}\) of 0.1 \(\mathrm{M} \mathrm{NaOH}\)
(3) \(100 \mathrm{mL}\) of \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}+100 \mathrm{mL}\) of \(0.1 \mathrm{M} \mathrm{NaOH}\)
(4) \(100 \mathrm{mL}\) of \(0.1 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH}+100 \mathrm{mL}\) of \(0.1 \mathrm{M} \mathrm{NH}_{3}\)WBJEE 2016 Hard - The correct order of boiling points of N-ethylethanamine (I), ethoxyethane (II) and butan-2-ol (III) isWBJEE 2023 Easy
- A metal \(M\) (specific heat 0.16 ) forms a metal chloride with \(65 \%\) chlorine present in it. The formula of the metal chloride will beWBJEE 2018 Easy
- A van der Waals' gas may behave ideally whenWBJEE 2013 Easy
- In the brown ring complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5}(\mathrm{NO})\right] \mathrm{SO}_{4}\)
nitric oxide behaves asWBJEE 2012 Medium
More PYQs from WBJEE
- If \({ }^n C_4,{ }^n C_5\) and \({ }^n C_6\) are in A.P., then \(n\) isWBJEE 2011 Easy
-

The cross-section of a reflecting surface is represented by the equation \(x^{2}+y^{2}=R^{2}\) as shown in the figure. A ray travelling in the positive \(x\) direction is directed toward positive y direction after reflection from the surface at point \(M\). The coordinate of the point \(\mathrm{M}\) on the reflecting surface isWBJEE 2021 Medium - \(A\) and \(B\) are two independent events such that \(P(A \cup B)=0.8\) and \(P(A)=0.3\). The \(P(B)\) isWBJEE 2009 Easy
- If \(\sqrt{y}=\cos ^{-1} x\), then it satisfies the differential equation \(\left(1-x^{2}\right) \frac{d^{2} y}{d x^{2}}-x \frac{d y}{d x}=c,\) where \(c\) is equal toWBJEE 2014 Medium
- Among the following statements about the molecules \(X\) and \(Y\), the one(s) which correct is (are)
WBJEE 2014 Easy - In the bandgap between valence band and conduction band in a material is \(5.0 \mathrm{eV},\) then the material isWBJEE 2014 Easy