List of top Chemistry Questions on introduction to organic chemistry asked in JEE Main

Increasing order of stability of the resonance structures is: Choose the correct answer from the options given below:

Increasing order of stability of the resonance structures is: Choose the correct answer from the options given below:

Increasing order of stability of the resonance structures is:
 Increasing order of stability of the resonance structures is:
Choose the correct answer from the options given below:
' $A$' and ' $B$ ' formed in the following set of reactions are:
A' and ' B ' formed in the following set of reactions are:
Which will undergo deprotonation most readily in basic medium?
Which will undergo deprotonation most readily in basic medium?
Reaction of $BeO$ with ammonia and hydrogen fluoride gives A which on thermal decomposition gives $BeF _2$ and $NH _4 F$ What is ' $A ^{\prime}$ ?
Reaction of propanamide with $Br_2/KOH(aq)$ produces :
The number of colloidal systems from the following, which will have 'liquid' as the dispersion medium, is____.
Gem stones, paints, smoke, cheese, milk, hair cream, insecticide sprays, froth, soap lather.
Which of the following carbocations is most stable?

Match List-I with List-II.

List-I (Metal) 

 

 

List-II (Emitted light

 

wavelength (nm))

(A) Li (I) 670.8
(B) Na (II) 589.2
(C) Rb (III) 780.0
(D) Cs (IV) 455.5

Choose the most appropriate answer from the options given below:

Match List-I with List-II.

List-I (Metal)List-II (Application)
(A) Cs (I) High temperature thermometer
(B) Ga (II) Water repellent sprays
(C) B (III) Photoelectric cells
(D) Si (IV) Bullet proof vest

Choose the most appropriate answer from the options given below:

In the given conversion the compound A is:

Consider the above reactions, the product A and product B, respectively are

Fig.

 

 

 



In the above reaction ‘A’ is

In Carius method of estimation of halogen, 0.45 g of an organic compound gave 0.36 g of AgBr. Find out the percentage of bromine in the compound.
(Molar masses: AgBr = 188 g mol–1; Br = 80 g mol–1)