List of top Questions asked in JEE Main- 2022

The number of points of intersection of $|z - (4 + 3i)| = 2$ and $|z| + |z - 4| = 6$, $z \in \mathbb{C}$, is 
The first ionization enthalpy of Na, Mg and Si, respectively, are : 496, 737 and 786 kJ mol–1. The first ionization enthalpy (kJ mol–1) of Al is:
s-block element which cannot be qualitatively confirmed by the flame test is
The major product in the reaction is:
The major product in the reaction with product2-Methyl prop-1-ene
The ′f′ orbitals are half and completely filled, respectively in lanthanide ions
[Given: Atomic no. Eu, 63; Sm, 62; Tm, 69; Tb, 65; Yb, 70; Dy, 66]
Identify the incorrect statement for \(PCl_5\) from the following.
Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B.
Given Compounds
Which of the following relation is not correct?
The IUPAC name of ethylidene chloride is:
Match List I with List II
 List I (polymer) List-II (Nature)
A.
 
A.
I.
Thermosetting polymer
B.
B.
II.
Fibers
C.
C.
III.
Elastomer
D.
D.
IV.Thermoplastic polymer
Choose the correct answer from the options given below:

An organic compound ‘A’ on reaction with NH3 followed by heating gives compound B. Which on further strong heating gives compound C(C8H5NO2). Compound C on sequential reaction with ethanolic KOH, alkyl chloride and hydrolysis with alkali gives a primary amine. The compound A is :

Consider the following reaction: 
A + alkali → B (Major Product)
If B is an oxoacid of phosphorus with no P-H bond, then A is

In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical ? 

(A) $Rb$ and $Cs$ 

(B) $Na$ and $K$ 

(C) $Ar$ and $Kr$ 

(D) $I $ and $At$ 

Choose the correct answer from the options given below :

For kinetic study of the reaction of iodide ion with \(H _2 O _2\) at room temperature : 
(A) Always use freshly prepared starch solution 
(B) Always keep the concentration of sodium thiosulphate solution less than that of \(KI\) solution 
(C) Record the time immediately after the appearance of blue colour 
(D) Record the time immediately before the appearance of blue colour 
(E) Always keep the concentration of sodium thiosulphate solution more than that of \(KI\) solution Choose the correct answer from the options given below :

In the given conversion the compound A is:

Amongst the following, the major product of the given chemical reaction is

Amongst the following, the major product of

Match List-I with List-II
 List-I
(Complex)		 List-II
(Hybridization)
A.Ni(CO)4I.sp3
B.[Ni(CN)4]2-II.sp3d2
C.[Co(CN)6]3-III.d2sp3
D.[CoF6]3-IV.dsp2
Choose the correct answer from the options given below:
Animal starch is the other name of
Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate?
Which one of the following is a reducing sugar?
Match List I with List II
List I  List II
A.AntipyreticI.Reduces pain
B.AnalgesicII.Reduces stress
C.TranquilizerIII.Reduces fever
D.AntacidIV.Reduces acidity (stomach)
Choose the correct answer from the options given below:
Which of the following compounds is an example of hypnotic drug?
The correct stability order of the following diazonium salt is
correct stability order of the diazonium salt
Which one of the following compounds is used as a chemical in certain type of fire extinguishers?
Which will have the highest enol content?