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Hydrocarbons

NEET / Chemistry / Organic Chemistry / 70 questions

ChemistryOrganic Chemistry70 PYQs

Practice 70 NEET Chemistry questions from Hydrocarbons. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Chemistry / Organic Chemistry
2000-2026
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2022-2026
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2017-2026

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Hydrocarbons Questions

Showing 50 of 70 questions on this page.

1Hydrocarbons
Given below are two statements :
Statement I : trans-But-2-ene upon treatment with $\mathrm{Br}_2$ in $\mathrm{CCl}_4$ gives the following product.

$$ \text { Statement II : cis-But-2-ene upon treatment with alkaline } \mathrm{KMnO}_4 \tex...
MCQ+4 / -12026
2Hydrocarbons
Consider the following reaction sequences and choose the correct option.
MCQ+4 / -12026
3Hydrocarbons
Among the following, the compound having conjugated double bonds is
MCQ+4 / -12026
4Hydrocarbons
The number of chlorine atoms present in the organic products $X$ and $Y$ of the following reactions, respectively, are :
MCQ+4 / -12026
5Hydrocarbons
Which one of the following compounds does not decolourize bromine water?
MCQ+4 / -12025
6Hydrocarbons
Predict the major product ' $P$ ' in the following sequence of reactions-
MCQ+4 / -12025
7Hydrocarbons
Which one of the following reactions does NOT give benzene as the product?
MCQ+4 / -12025
8Hydrocarbons
The alkane that can be oxidized to the corresponding alcohol by KMnO\(_4\) as per the equation

is, when :
MCQ+4 / -12024
9Hydrocarbons
Given below are two statements:
Statement I: Propene on treatment with diborane gives an addition product with the formula

Statement II: Oxidation of

with hydrogen peroxide in presence of \(\mathrm{NaOH}\) gives propan-2ol.
In the light o...
MCQ+4 / -12024
10Hydrocarbons
Identify product \((\mathrm{A})\) is the following reaction :
MCQ+4 / -12023
11Hydrocarbons
The incorrect method for the synthesis of alkenes is
MCQ+4 / -12022
12Hydrocarbons
The products A and B in the following reaction sequence are :
MCQ+4 / -12022
13Hydrocarbons
The decreasing order of boiling points of the following alkanes is :
(a) heptane
(b) butane
(c) 2-methylbutane
(d) 2-methylpropane
(e) hexane
Choose the correct answer from the options given below :
MCQ+4 / -12022
14Hydrocarbons
The correct structure of 2, 6-dimethyl-dec-4-ene is
MCQ+4 / -12021
15Hydrocarbons
As alkene on ozonolysis gives methanal as one of the product, Its structure is :
MCQ+4 / -12020
16Hydrocarbons
An alkene “A” on reaction with O3 and Zn + H2O gives propanone and ethanal in equimolar ratio. Addition
of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is :
MCQ+4 / -12019
17Hydrocarbons
Among the following, the reaction that proceeds through an electrophilic substitution, is :
MCQ+4 / -12019
18Hydrocarbons
The most suitable reagent for the following conversion, is :
MCQ+4 / -12019
19Hydrocarbons
Hydrocarbon (A) reacts with bromine by
substitution to form an alkyl bromide which by
Wurtz reaction is converted to gaseous
hydrocarbon containing less than four carbon
atoms. (A) is
MCQ+4 / -12018
20Hydrocarbons
Which one is the correct order of acidity?
MCQ+4 / -12017
21Hydrocarbons
With respect to the conformers of ethane, which of the following statements is true?
MCQ+4 / -12017
22Hydrocarbons
Predict the correct intermediate and product in the following reaction :
$${H_3}C - C \equiv CH\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{HgS{O_4}}^{{H_2}O,{H_2}S{O_4}}} \mathop {Intermediate}\limits_{(A)} \to \mathop {\Pr oduct}\l...
MCQ+4 / -12017
23Hydrocarbons
In the given reaction,

the product P is
MCQ+4 / -12016
24Hydrocarbons
Which of the following can be used as the halide component for Friedel-Crafts reaction?
MCQ+4 / -12016
25Hydrocarbons
Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction ?
MCQ+4 / -12016
26Hydrocarbons
In pyrrole the electron density is maximum on
MCQ+4 / -12016
27Hydrocarbons
In which of the following molecules, all atoms are coplanar?
MCQ+4 / -12016
28Hydrocarbons
The compound that will react most readily with gaseous bromine has the formula
MCQ+4 / -12016
29Hydrocarbons
Consider the nitration of benzene using mixed conc.H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be
MCQ+4 / -12016
30Hydrocarbons
For the following reactions :
(A)  CH3CH2CH2Br + KOH \(\to\)
                 CH3CH \(=\) CH2 + KBr + H2O

Which of the following statements is correct?
MCQ+4 / -12016
31Hydrocarbons
The pair of electrons in the given carbanion, CH3C \(\equiv\) C\(-\), is present in which of the following orbitals?
MCQ+4 / -12016
32Hydrocarbons
In the reaction

X and Y are
MCQ+4 / -12016
33Hydrocarbons
A single compound of the structure,

is obtainable from ozonolysis of which of the following cyclic compounds?
MCQ+4 / -12015
34Hydrocarbons
Given :

The enthalpy of hydrogenation of these compounds will be in the order as
MCQ+4 / -12015
35Hydrocarbons
In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1 methylcyclohexane. The possible alkene is
MCQ+4 / -12015
36Hydrocarbons
2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?
MCQ+4 / -12015
37Hydrocarbons
Which of the following is not the product of dehydration of
MCQ+4 / -12015
38Hydrocarbons
What products are formed when the following compound is treated with Br2 in the presence of FeBr3?
MCQ+4 / -12014
39Hydrocarbons
Identify Z in the sequence of reactions :
MCQ+4 / -12014
40Hydrocarbons
Which of the following organic compounds has same hybridization as its combustion product (CO2)?
MCQ+4 / -12014
41Hydrocarbons
In the following reaction :

Product 'P' will not give
MCQ+4 / -12013
42Hydrocarbons
Which of the following compounds will not undergo Friedal-Craft's reaction easily?
MCQ+4 / -12013
43Hydrocarbons
Among the following compounds the one that is most reactive towards electrophilic nitration is
MCQ+4 / -12012
44Hydrocarbons
In the following reaction

The major product is
MCQ+4 / -12012
45Hydrocarbons
Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
MCQ+4 / -12012
46Hydrocarbons
The reaction of toluene with Cl2 in presence of FeCl3 gives X and reaction in presence of light gives Y. Thus, X and Y are
MCQ+4 / -12010
47Hydrocarbons
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by
MCQ+4 / -12010
48Hydrocarbons
In a set of reactions, ethylbenzene yielded a product D.

D would be
MCQ+4 / -12010
49Hydrocarbons
Benzene reacts with CH3Cl in the presence of anhydrons AlCl3 to form
MCQ+4 / -12009
50Hydrocarbons
Which of the following compounds will exhibit cis-trans (geometrical) isomerism?
MCQ+4 / -12009

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