List of top Chemistry Questions asked in WBJEE

The correct order of relative stability of the given conformers of n-butane is
order of relative stability
The above conversion can be carried out by:
The correct relationship between molecule I and II is:
correct relationship between molecule I and II
Which of the following is radioactive?
The correct bond order of B-F bond in BF3 molecule is:
The product of the following hydrogenation reaction is:
The product of the following reaction is:
The metal-pair that can produce nascent hydrogen in alkaline medium is:
The correct order of acidity of the following hydra acids is:
How much solid oxalic acid (molecular weight $126$) has to be weighed to prepare $100$ mL of exactly $0.1$ N oxalic acid solution in water?
Oxidation states of Cr in K2Cr2O7 and CrO5 are, respectively:
How many monobrominated product(s) (including stereoisomers) would form in the free radical bromination of n-butane?
The correct statement(s) about B2H6 is/are:
XeF2, NO2, HCN, ClO2, CO2 Identify the non-linear molecule-pair from the above mentioned molecules.
During the preparation of NH3 in Haber’s process, the promoter(s) used is/are:
Avogadro's law is valid for
The number of unpaired electrons in $Mn^{2+}$ ion is
The correct pair of electron affinity order is:
What is the correct order of acidity of salicylic acid, 4-hydroxybenzoic acid, and 2,6-dihydroxybenzoic acid?
Hybridisation of the negative carbons in (1) and (2) are:
Hybridisation of the negative carbons
Let (Cms)H2 be the r.m.s speed of H2 at 150 K. At what temperature, the most probable speed of helium [(Cmp)He] will be half of (Crms)H2?
Pick the correct statement:
The number of atoms in body-centred and face-centred cubic unit cell respectively are
The major product of the following reaction is $F_3C \rightarrow CH = CH_2 + HBr$
$1$ mL of water has $25$ drops. Let $N_A$ be the Avogadro number. What is the number of molecules present in $1$ drop of water? (Density of water = $1$ g/mL)