List of top Chemistry Questions

Which of the following noble gas molecules is more polarised by water?
Which among the following elements when added to silicon forms P-type semiconductor?
In 2 hours, a certain current liberates 0.504 g hydrogen. How many grams of copper can be deposited by the same current flowing for the same time in a $CuSO_4$ solution?
(Molar mass of Cu $= 63.5\ \text{g mol}^{-1}$, $H_2 = 2.0\ \text{g mol}^{-1}$)
Calculate the strength of 10 volume solution of hydrogen peroxide.
What type of solution is obtained when benzoic acid is added in benzene?
The organic compound shown below belongs to
Which among the following crystal structures the edge length of unit cell is equal to twice the radius of one atom?
Which statement from the following is NOT true about cellobiose?
Which of the following is an example of narrow spectrum antibiotics?
What is the total number of chain isomers exhibited by hexane?
What is the oxidation state of chlorine atom in chlorous acid?
Identify the product A in the following reaction.
\[ (CH_3)_3C{-}OH \xrightarrow[\;573\ \text{K}\;]{Cu} A \]
The number of asymmetric carbon atoms present in 2,3-dichloro-4-methylpentane is
Secondary nitroalkanes react with nitrous acid to form
When dry cell is in use the change taking place at cathode is
Identify the increasing order of effective magnetic moment of following elements in their +2 oxidation state.
(Fe $(Z=26)$, Co $(Z=27)$, Ni $(Z=28)$, Cu $(Z=29)$)
If a dilute solution of NaI is added to dilute solution of excess $AgNO_3$, then species adsorbed on AgI colloidal particles is
0.224 g of an organic compound on complete combustion gives 0.126 g of water. What is the percentage composition of hydrogen in the compound?
Which of the following compounds is obtained when benzene reacts with benzoyl chloride in presence of anhydrous $AlCl_3$?
Which among the following complexes carries no net charge?
Why is bond order of $Be_2$ molecule zero?
(N$_b$ = bonding electrons, N$_a$ = antibonding electrons)
Identify the use of Buna-N.
Which among the following polymers is obtained first by formation of salt by neutralization and then by step growth polymerisation?
Identify the coordinate complex having ambidentate ligand from the following.
Identify the product B in the following reaction
\[ {CH3COOH + C2H5OH →[H^+][-H2O] A →[H2/Ni] B} \]