JEE Advanced Previous Year Questions (2021 - 2024): Hydrocarbons | Chemistry for JEE Main & Advanced PDF Download

 Page 1


 
Q1: In the following reaction sequence, the major product P is formed.
Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q. Reaction of Q with
excess NaOH followed by the treatment with CaCl 2 yields Ca-soap R, quantitatively. Starting with one mole
of Q, the amount of R produced in gram is ________.
[Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]   [JEE Advanced 2024 Paper 1]
Ans: 909
Page 2


 
Q1: In the following reaction sequence, the major product P is formed.
Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q. Reaction of Q with
excess NaOH followed by the treatment with CaCl 2 yields Ca-soap R, quantitatively. Starting with one mole
of Q, the amount of R produced in gram is ________.
[Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]   [JEE Advanced 2024 Paper 1]
Ans: 909
 
 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The number of isomeric tetraenes (NOT containing ???? -hybridized carbon atoms) that can be 
formed from the following reaction sequence is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 2 Online 
Q2. The number of - ????
?? - (methylene) groups in the product formed from the following 
reaction sequence is 
 
Page 3


 
Q1: In the following reaction sequence, the major product P is formed.
Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q. Reaction of Q with
excess NaOH followed by the treatment with CaCl 2 yields Ca-soap R, quantitatively. Starting with one mole
of Q, the amount of R produced in gram is ________.
[Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]   [JEE Advanced 2024 Paper 1]
Ans: 909
 
 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The number of isomeric tetraenes (NOT containing ???? -hybridized carbon atoms) that can be 
formed from the following reaction sequence is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 2 Online 
Q2. The number of - ????
?? - (methylene) groups in the product formed from the following 
reaction sequence is 
 
Ans: 0 
 
JEE Advanced 2022 Paper 2 Online 
Q3. The total number of chiral molecules formed from one molecule of ?? on complete ozonolysis 
( O
3
, Zn / H
2
O ) is 
 
Ans: 2 
Page 4


 
Q1: In the following reaction sequence, the major product P is formed.
Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q. Reaction of Q with
excess NaOH followed by the treatment with CaCl 2 yields Ca-soap R, quantitatively. Starting with one mole
of Q, the amount of R produced in gram is ________.
[Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]   [JEE Advanced 2024 Paper 1]
Ans: 909
 
 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The number of isomeric tetraenes (NOT containing ???? -hybridized carbon atoms) that can be 
formed from the following reaction sequence is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 2 Online 
Q2. The number of - ????
?? - (methylene) groups in the product formed from the following 
reaction sequence is 
 
Ans: 0 
 
JEE Advanced 2022 Paper 2 Online 
Q3. The total number of chiral molecules formed from one molecule of ?? on complete ozonolysis 
( O
3
, Zn / H
2
O ) is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 1 Online 
Q4. If the reaction sequence given below is carried out with 15 moles of acetylene, the amount 
of the product ?? formed (in ?? ) is 
 
 
The yields of ?? , ?? , ?? and ?? are given in parentheses. 
[Given: Atomic mass of ?? = ?? , ?? = ???? , ?? = ???? , ???? = ???? ] 
Ans: 135.80 to 136.20 
 
Page 5


 
Q1: In the following reaction sequence, the major product P is formed.
Glycerol reacts completely with excess P in the presence of an acid catalyst to form Q. Reaction of Q with
excess NaOH followed by the treatment with CaCl 2 yields Ca-soap R, quantitatively. Starting with one mole
of Q, the amount of R produced in gram is ________.
[Given, atomic weight: H = 1, C = 12, N = 14, O = 16, Na = 23, Cl = 35, Ca = 40]   [JEE Advanced 2024 Paper 1]
Ans: 909
 
 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The number of isomeric tetraenes (NOT containing ???? -hybridized carbon atoms) that can be 
formed from the following reaction sequence is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 2 Online 
Q2. The number of - ????
?? - (methylene) groups in the product formed from the following 
reaction sequence is 
 
Ans: 0 
 
JEE Advanced 2022 Paper 2 Online 
Q3. The total number of chiral molecules formed from one molecule of ?? on complete ozonolysis 
( O
3
, Zn / H
2
O ) is 
 
Ans: 2 
 
JEE Advanced 2022 Paper 1 Online 
Q4. If the reaction sequence given below is carried out with 15 moles of acetylene, the amount 
of the product ?? formed (in ?? ) is 
 
 
The yields of ?? , ?? , ?? and ?? are given in parentheses. 
[Given: Atomic mass of ?? = ?? , ?? = ???? , ?? = ???? , ???? = ???? ] 
Ans: 135.80 to 136.20 
 
 
 
Molecular formula of D is C
8
H
8
O
2
 
Molar mass of ?? is (12 × 8 + 8 × 1 + 16 × 2 ) = 136 g 
? Mass of ?? is 136