List of top Chemistry Questions asked in JEE Advanced

Which one of the following compounds has $sp^2-$ hybridisation?
Among $KO_2$, $AlO_2^-$ , $BaO_2$ and $NO_2^+$, unpaired electron is present in
Which contains both polar and non-polar bonds?
Which of the following is an organometallic compound?
The number of moles of $KMnO_4$ that will be needed to react completely with one mole of ferrous oxalate in acidic medium is
The critical temperature of water is higher than that of $O_2$ because the $H_2O$ molecule has
The compressibility factor of an ideal gas is
The average translational energy and the rms speed of molecules in a sample of oxygen gas at 300 K are $6.21 \times 10^{-21}$ J and 484 m/s respectively. The corresponding values at 600 K are nearly (assuming ideal gas behaviour)
During debromination of meso-2,3-dibromobutane, the major compound formed is
(CH$_3 )_3$CMgCl on treatment with D$_2O$ produces
In Cannizzaro's reaction, the intermediate which is the best hydride donor is
Which one of the following species is not a pseudo halide?
When cyclohexane is poured on water, it floats because
How many optically active stereoisomers are possible for butane-2, 3-diol ?
The standard reduction potentials of $Cu^{2+} / Cu $ and $Cu^{2+} / Cu^+$ are 0.337 V and 0.153 V respectively. The standard electrode potential of $Cu^+ /Cu$ half-cell is
Which of the following compounds is expected to be coloured?
Ammonium dichromate is used in some fireworks. The green coloured powder blown in the air is
The cyanide ion $CN^-$ and $N_2$ are isoelectronic, but in contrast to $CN^-$ , $N_2$ is chemically inert because of
Among the following species, identify the isostructural pairs. $NF_3$, $NO_3^-$, $BF_3$, $H_3O^+$, $N_3H$
Arrange the following compounds in order of increasing dipole moment, toluene (I), m-dichlorobenzene (II), o-dichlorobenzene (III),p-dichlorobenzene (IV)
The ratio between the root mean square speed of $H_2$ at 50 K and that of $O_2$ at 800 K is
Which of the following has the maximum number of unpaired electrons ?
$^{27}_{13}AI$ is a stable isotope, $^{29}_{13}AI$ is expected to decay by
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to
Sodium thiosulphate is prepared by