JKCET SERIES Chemistry
Hydrocarbons
17 previous year questions.
Volume: 17 Ques
Yield: Medium
High-Yield Trend
2
2019 1
2017 2
2014 3
2013 3
2012 2
2011 1
2009 2
2008 1
2007 Chapter Questions 17 MCQs
01
PYQ 2007
medium
chemistry ID: jkcet-20
According to Huckel's rule an aromatic compound must possess
1
electrons
2
electrons
3
electrons
4
electrons
02
PYQ 2008
medium
chemistry ID: jkcet-20
Which of the following alkenes gives only acetaldehyde on ozonolysis?
1
Ethene
2
Propene
3
1-Butene
4
2-Butene
03
PYQ 2008
medium
chemistry ID: jkcet-20
Which one of the following mono-enes does not exhibit geometric isomerism?
1
2
3
4
04
PYQ 2009
medium
chemistry ID: jkcet-20
Which one of the following is aromatic?
1
Cyclopentadienyl cation
2
Cyclooctatetraene
3
Cycloheptatriene
4
Cycloheptatrienylcation
05
PYQ 2011
medium
chemistry ID: jkcet-20
Which one of the following is not aromatic?
1
Cyclopentadienyl anion
2
Cycloheptatrienyl cation
3
Cyclooctatetraene
4
Thiophene
06
PYQ 2011
medium
chemistry ID: jkcet-20
Which one among the following is most reactive towards electrophilic substitution reaction?
1
Aniline
2
Nitrobenzene
3
Benzoicacid
4
Acetanilide
07
PYQ 2012
easy
chemistry ID: jkcet-20
For an electrophilic aromatic substitution reaction
1
chlorine is directing group and also electron releasing group
2
chlorine is directing group and also electron with drawing group
3
chlorine is meta directing group and also electron relasing group
4
chlorine is meta directing group and also electron withdrawing group
08
PYQ 2012
medium
chemistry ID: jkcet-20
Anti-Markownikoff addition of is not observed in
1
propene
2
butene
3
-butene
4
-pentene
09
PYQ 2012
medium
chemistry ID: jkcet-20
Among the following, which is the least stable conformation of cyclohexane?
1
Boat conformation
2
Half chair conformation
3
Twist boat conformation
4
Chair conformation
10
PYQ 2013
medium
chemistry ID: jkcet-20
Which of the following is least reactive to nitration?
1
Benzene
2
Nitrobenzene
3
Chlorobenzene
4
Aniline
11
PYQ 2013
medium
chemistry ID: jkcet-20
Which of the following groups is ortho and para directing?
1
2
3
4
12
PYQ 2013
easy
chemistry ID: jkcet-20
Electrolysis of an aqueous solution of sodium ethanoate gives
13
PYQ 2014
easy
chemistry ID: jkcet-20
Ethylene can be converted into alcohol by treatment of
14
PYQ 2014
medium
chemistry ID: jkcet-20
What is the product of reaction between calcium carbide and water?
1
Ethylene
2
Acetylene
3
Methane
4
Benzene
15
PYQ 2017
medium
chemistry ID: jkcet-20
Allene contains
1
one triple and two double bonds
2
two double and four single bonds
3
two triple and one double bonds
4
one double and one triple bond
16
PYQ 2019
medium
chemistry ID: jkcet-20
Which among the following conformations is the most stable for cyclohexane?
1
Boat conformation
2
Chair conformation
3
Skew conformation
4
Gauche conformation
17
PYQ 2019
easy
chemistry ID: jkcet-20
Which of the following reactions is used for producing symmetrical alkane with double carbon atoms?
1
Sandmeyer?s reaction
2
Wurtz reaction
3
Gattermann reaction
4
Riemer-Tiemann reaction
About Hydrocarbons - JKCET
Hydrocarbons is a vital chapter for JKCET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Hydrocarbons PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Hydrocarbons carry the most weight. Then, tackle the questions iteratively to solidify your understanding.