List of top Chemistry Questions asked in JEE Main

Match List-I with List-II :

is reached with regents is List-I to from products in List-II.

	List-I (Reagent)		List-II (Products)
A		I
B	HBF4 \(\triangle\)	II
C	Cu, HCI	III
D	CuCN/ KCN	IV

Choose the correct answer from the options given below :

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 :

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)

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)

Consider the following reaction that goes from A to B in three steps as shown

below Choose the correct option:

The product , which is not obtained during the electrolysis of brine solution is ____ .

The group of chemicals used as pesticide is

In the following reaction 'B' is

From the figure of column chromatography given below, identify incorrect statements

A. Compound 'c' is more polar than 'a' and 'b' 
B. Compound 'a' is least polar
C. Compound 'b' comes out of the column before 'c' and after 'a' 
D. Compound 'a' spends more time in the column 
Choose the correct answer from the options given below

Find out the major product from the following reaction.

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.

The energy of an electron in the first Bohr orbit of hydrogen atom is \(-2.18×10^{-18}J\). Its energy in the third Bohr orbit is ____.

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:

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:

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

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

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

In the reaction given below ‘A’ is

In the reaction given below ‘B’ is:

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

The difference between electron gain enthalpies will be maximum between

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

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 major product A and B from the the following reaction are

The bond order and magnetic property of acetylide ion are same as that of