Most Affordable JEE | NEET | 8,9,10 Preparation by Kota's Top IITian Doctor Faculties

Structural Isomerism - JEE Main Previous Year Questions with Solutions

JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral.   Simulator Previous Years AIEEE/JEE Mains Questions
Q. The alkene that exhibits geometrical isomerism is :- (1) 2–butene (2) 2–methyl–2–butene (3) Propene (4) 2–methyl propene [AIEEE-2009]
Ans. (1)
Q. The number of stereoisomers possible for a compound of the molecular formula CH3–CH=CH–CH(OH)–Me is :- (1) 4             (2) 6              (3) 3             (4) 2 [AIEEE-2009]
Ans. (1) exhibits both geometrical as well as optical isomerism. Cis – R Trans – R Cis – S Trans – S
Q. Out of the following, the alkene that exhibits optical isomerism is : (1) 2-methyl-2-pentene (2) 3-methyl-2-pentene (3) 4-methyl-1-pentene (4) 3-methyl-1-pentene [AIEEE-2010]
Ans. (4)
Q. Identify the compound that exhibits tautomerism :- (1) 2-Pentanone (2) Phenol (3) 2-Butene (4) Lactic acid [AIEEE-2011]
Ans. (1)
Q. The IUPAC name of the following compounds is : (1) (Z) – 5 – hepten – 3 – yne (2) (Z) – 2 – hepten – 4 – yne (3) (E) – 5 – hepten – 3 – yne (4) (E) – 2 – hepten – 4 – yne [JEE-Main-2012]
Ans. (4)
Q. Dipole moment is shown by :- (1) trans-2, 3-dichloro- 2-butene (2) 1, 2-dichlorobenzene (3) 1, 4-dichlorobenzene (4) trans-1, 2-dinitroethene [JEE-Main 2012]
Ans. (2)
Q. Maleic acid and fumaric acids are :- (1) Tautomers (2) Chain isomers (5) Geometrical isomers (4) Functional isomers [JEE-Main 2012]
Ans. (3)
Q. Monocarboxylic acids are functional isomers of : (1) Esters (2) Amines (3) Ethers (4) Alcohols [JEE-Main 2013]
Ans. (1) Monocarboxylic acid and Esters $(-\mathrm{COO}-)$ has same general $(-\mathrm{COOH}) .$ Formula $\left[\mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 \mathrm{n}} \mathrm{O}_{2}\right]$ but different FG, so are called functional group isomer.
Q. Arrange in the correct order of stability (decreasing order) for the following molecules: [JEE-Main 2013]
Ans. (3)
Q. For which of the following molecule significant $\mu \neq 0$ [JEE-Main 2014]
Ans. (2) Due to presence of $\ell . \mathrm{p}_{(\mathrm{s})}$ on oxygen and sulphur atom which are out of plane hence
 

Leave a comment

Comments

Jitendra Kumar
July 16, 2022, 10:37 p.m.
Thank you for ur support to students.
Venkateswarlu
June 11, 2021, 7 p.m.
Questions are well but answers for the questions also provided then it is very easy to correction and checking
Ritik Ranjan
Feb. 8, 2021, 9:34 p.m.
Dang..These questions don't even require pen. Guys try out advanced pyqs of isomerism..It's literally worth it..
Feb. 3, 2021, 11:12 p.m.
Please show the solution for the questions
Answer NEEDED
Nov. 9, 2020, 11:10 a.m.
ANS OF QUESTION 9 ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................
Lakshit
May 27, 2023, 6:35 a.m.
In 3rd option both methyl are at equitorial. So,that structure is most stable
technical team
Sept. 1, 2020, 6:08 p.m.
please give scheme to download it
raghavendra
Aug. 29, 2020, 10:52 a.m.
very nice questions
alok
Aug. 23, 2020, 9:45 a.m.
tha best
Sahithi
June 26, 2020, 12:02 p.m.
It's good
Expert
June 18, 2020, 7:48 a.m.
I m in class 9 but still I can solve alll of the above questions
Sumit
Aug. 29, 2023, 6:35 a.m.
Halwa hai na
sk sukil roy
May 16, 2020, 4:28 p.m.
some what good but very less questions for online very basic but really good to increases your confidence soo
Namo
April 23, 2020, 12:32 p.m.
Very less questions available here for doing online questions
Aryan nambiar
April 11, 2020, 1:01 a.m.
Good way to practice but do increase the level a bit ... It is not comparable to jee main difficulty ...
Allu Arjun
April 9, 2020, 7:01 p.m.
good ; useful but it's somewhat low level
Allu Arjun
April 9, 2020, 7:01 p.m.
good ;useful but it's somewhat low level
Prince pavan
Dec. 28, 2019, 4:03 p.m.
This type of experience (combination of all papers in one topic)is very useful to preparation of jee. Thanks for giving this type of experience.
Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now