List of practice Questions

If the mass of a body is $M$ on the surface of the earth, the mass of the same body on the surface of the moon is
Which of the following has square planar structure ?
What is the correct sequence of bond order ?
First restriction endonuclease enzyme was discovered in
Ethyl alcohol gives ethyl chloride with the help of
In which of the following pairs, the two species are iso - structural ?
Which of the following is an organometallic compound?
The parameter on which the value of the determinant $\Rightarrow \Delta=\begin{vmatrix}1& a & a^2\\ \cos(p-d)x& \cos\ px & \cos(p+d)x\\ \sin(p-d)x& \sin\ px& \sin(p+d)x\\ \end{vmatrix}$ does not depend upon, is
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 maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. The stopping potential in volt 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
Among the following sets of fruits, those that belong to the same category, from the point of view of classification, are
Which one of the following species is not a pseudo halide?
In Cannizzaro's reaction, the intermediate which is the best hydride donor is
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
When cyclohexane is poured on water, it floats because
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
A proton, a deuteron and alpha particle having the same kinetic energy are moving in circular trajectories in a constant magnetic field. $r_p, r_d $ and $r_{\alpha}$ denote respectively the radii of the trajectories of these particles, then
A mass m is moving with a constant velocity along a line parallel to the x-axis, away from the origin. Its angular momentum with respect to the origin