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JEE Advanced Previous Year Questions 
(2021-2023): d and f-block Elements 
2023 
Single Correct Type 
JEE Advanced 2023 Paper 1 Online 
Q1. In the scheme given below, ?? and ?? , respectively, are 
?? . ?????? ?? 
?? -
 and ????
?? ?? .  ?????? ?? 
?? -
 and ????
?? ?? . ?????? ?? 
-
and ????
?? 
D ???????? ?? and ???????? 
Ans: (C) 
 
 
2022 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The reaction of ???? and ?? ?? ?? ?? gives a Xe compound ?? . The number of moles of ???? produced 
by the complete hydrolysis of ?? ?????? of ?? is 
Ans: 4 
 
Xe + 2O
2
 F
2
? XeF
4
+ 2O
2
 
(P) 
6XeF
4
+ 12H
2
O ? 4Xe + 2XeO
3
+ 24HF + 3O
2
 
(P) 
Page 2


JEE Advanced Previous Year Questions 
(2021-2023): d and f-block Elements 
2023 
Single Correct Type 
JEE Advanced 2023 Paper 1 Online 
Q1. In the scheme given below, ?? and ?? , respectively, are 
?? . ?????? ?? 
?? -
 and ????
?? ?? .  ?????? ?? 
?? -
 and ????
?? ?? . ?????? ?? 
-
and ????
?? 
D ???????? ?? and ???????? 
Ans: (C) 
 
 
2022 
Numerical Type 
JEE Advanced 2022 Paper 2 Online 
Q1. The reaction of ???? and ?? ?? ?? ?? gives a Xe compound ?? . The number of moles of ???? produced 
by the complete hydrolysis of ?? ?????? of ?? is 
Ans: 4 
 
Xe + 2O
2
 F
2
? XeF
4
+ 2O
2
 
(P) 
6XeF
4
+ 12H
2
O ? 4Xe + 2XeO
3
+ 24HF + 3O
2
 
(P) 
So, from the above reaction, it is clear that 6 moles of XeF
4
 produces 24 moles of HF. 
So, 1 mole of XeF
4
 will produce 
24
6
 moles of HF, i.e., 4 moles of HF. 
Multiple Correct Type 
JEE Advanced 2022 Paper 1 Online 
Q2. The treatment of galena with ?????? ?? produces a gas that is 
A. paramagnetic 
B. bent in geometry 
C. an acidic oxide 
D. colorless 
Ans: (A,D) 
PbS + dil. HNO
3
? Pb(NO
3
)
2
+ S + NO + H
2
ONO is paramagnetic due to the presence of unpaired 
electron.  
It is a neutral oxide. It is colourless. 
Hence, (A) and (D) are correct statements. 
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