List of top Chemistry Questions

Two statements are given below: Statement-I: The ratio of the molar volume of a gas to that of an ideal gas at constant temperature and pressure is called the compressibility factor. 
Statement-II: The RMS velocity of a gas is directly proportional to the square root of \( T(K) \). 

Observe the following structure:
 
The formal charges on the atoms 1, 2, 3 respectively are:

The correct order of bond angles of the molecules \( SiCl_4 \), \( SO_3 \), \( NH_3 \), \( HgCl_2 \) is:

Match the following: 

Identify the pair of elements in which the number of electrons in the (n-1) shell is the same:
Which of the following reactions give phosphine? i. Reaction of calcium phosphide with water
ii. Heating white phosphorus with concentrated NaOH solution in an inert atmosphere
iii. Heating red phosphorus with alkali
Which of the following is an example for fibre?

The conversion of X to Y is:

 
The incorrect statement about 'B' is: 

Arrange the following in decreasing order of their basicity: 

The two reactions involved in the conversion of benzene diazonium chloride to biphenyl are respectively

Consider the reactions:

Consider the following reactions:
 
 Y and Z respectively are:

An alkene X (\( C_4H_8 \)) does not exhibit cis-trans isomerism. Reaction of X with \( Br_2 \) in the presence of UV light gave Y. What is Y?
The paramagnetic complex ion which has no unpaired electrons in \( t_{2g} \) orbitals is
Which of the following pair is not correctly matched?
The number of essential and non-essential amino acids from the following list respectively is Given amino acids: Val, Gly, Leu, Lys, Pro, Ser
Which transition metal does not form ‘MO’ type oxide? (M = transition metal)
When glucose is oxidized with nitric acid, the compound formed is

Match the following reagents with the products obtained when they react with a ketone: 

What are the major products X and Y respectively in the following reactions? \[ {(CH}_3{)}_3{COONa} + {CH}_2 {CH} {Br} \rightarrow X \] \[ {(CH}_3{)}_3{COCH}_2 {CH}_3 + {CH}_3{COO}{Na} \rightarrow Y \]

The major products X and Y respectively from the following reactions are 

Match the following

Carrot and curd are sources for the vitamins respectively.
Which of the following structure of proteins represents its constitution?