List of top Chemistry Questions asked in JEE Main

the major product A and B from the the following reaction are

The major product formed in the following reaction is

Match List I with List II

	List I  Element detected		List II  Reagent used/ Product formed
A	Nitrogen	I	Na2[Fe(CN)5 NO]
B	Sulphur	II	AgNO3
C	Phosphorous	III	Fe4[Fe(CN)6]3
D	Halogen	IV	(NH4)2 MoO4

Choose the correct answer from the options given below:
 

The difference between electron gain enthalpies will be maximum between

The standard electrode potential of M^+/M in aqueous solution does not depend on

Compound P is neutral. Q gives effervescence with NaHCO₃ while R reacts with Hinsbergs reagent to give solid soluble in NaOH. Compound P is

Match the following

Column-A	Column-B
Nylon 6	Natural Rubber
Vulcanized Rubber	Cross Linked
cis-1,4-polyisoprene	Caprolactam
Polychloroprene	Neoprene.

Choose the correct answer from option given below

D-(+)- Glyceraldehyde  
The two products formed in above reaction are

In the following reaction 'X' is
CH₃ (CH₂)₄ CH₃ \(\frac{A n h y . A l C l _3 }{HCL\triangle}X\) major product

2-Methyl propyl bromide reacts with C₂H₅O^- and gives 'A' whereas on reaction with C₂H₅OH it gives 'B'. The mechanism followed in these reactions and the products 'A' and 'B' respectively are

In the reaction given below ‘A’ is

Among the following compounds, the one which shows highest dipole moment is

The mismatched combinations are
A. Chlorophyll - Co 
B. Water hardness - EDTA 
C. Photography - [Ag(CN)₂]- 
D. Wilkinson catalyst - [(Ph₃P)₃ RhCl]  
E. Chelating ligand-D- Penicillamine

Be(OH)₂ reacts with Sr(OH)₂ to yield an ionic salt. Choose the incorrect option related to this reaction from the following:

Given below are two statements:
Statement I: Permutit process is more efficient compared to the synthetic resin method for the softening of water.
Statement II: Synthetic resin method results in the formation of soluble sodium salts.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following statements are not correct?
A. The electron gain enthalpy of F is more negative than that of Cl.
B. Ionization enthalpy decreases in a group of periodic table.
C. The electronegativity of an atom depends upon the atoms bonded to it.
D. Al₂O₃ and NO are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below:

The strongest acid from the following is

Given below are two statements :
Statement-I: Morphine is a narcotic analgesis. It helps in relieving pain without producing sleep. 
Statement-II: Morphine and its derivatives are obtained from opium poppy. 
In the light of the above statements, choose the correct answer from the options given below.

Find out the major product from the following reaction

The group of chemicals used as pesticide is

In the following reaction 'B' is

Given below are two statements: One is labelled as "Assertion A" and the other is labelled as "Reason R".
Assertion A: In the complex Ni(CO), and Fe(CO)s, the metals have zero oxidation state.
Reason R: Low oxidation states are found when a complex has ligands capable of π-donor character in addition to the o-bonding.
In the light of the above statements, choose the most appropriate answer from the option given below.

The volume of 0.02 M aqueous HBr required to neutralize 10.0 mL of 0.01 M aqueous Ba(OH)₂ is (Assume complete neutralization)

In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at no. of Ti : 22, V : 23, Cr : 24, Mn : 25, Fe : 26)

Match List-I with List-II :

	List-I		List-II
A	Saccharin	I	High potency sweetener
B	Aspartame	II	First artificial sweetening agent
C	Alitame	III	Stable at cooking temperature
D	Sucralose	IV	Unstable at cooking temperature

Choose the correct answer from the options given below :