List of practice Questions

Kupffer cells are found in
July 11 is observed as:
IUPAC name of
Intermolecular hydrogen bonding is strongest in
In the following common emitter configuration an $n p n$ transistor with current gain $\beta=100$ is used. The output voltage of the amplificr will be
In fission of $U-235$, the percentage of mass convened into energy is about:
In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen ?
If $A = \begin{bmatrix}a&b\\ b&a\end{bmatrix}$ and $A^{2}\begin{bmatrix}\alpha&\beta \\ \beta&\alpha\end{bmatrix}$, then
In the preparation of sulphuric acid, $ {{V}_{2}}{{O}_{5}} $ is used in the reaction which is
Which one of the following configuration is correct for $ Fe^{+3}$ ?
$1$-Chlorobutane on reaction with alcoholic potash gives
How many structural isomers can be obtained from $C_2H_2Br_2$
When an $\alpha$-particle is removed from $Ra$, the new element formed is of
The process carried out in perfect insulation is
Glycerol at $ 530\,K $ reacts with oxalic acid to produce
The focal length of objective and eye piece of a telescope are $ {{f}_{0}} $ and $ {{f}_{e}} $ respectively. Then its magnification will be:
If the critical angle for total internal reflection from a medium to vacuum is $ 30{}^\circ $ , then the speed of light in the medium is
A prism has a refracting angle of $ 60{}^\circ $ . If it produces a minimum deviation of $ 30{}^\circ $ in an incident ray, the angle of incidence is
A liquid has only
The ratio of radii of two spheres of same material is $1 : 4$, then the ratio of their heat capacities is
A solid sphere is rolling without slipping on a horizontal surface. The ratio of its rotational kinetic energy and translational kinetic energy is:
Ethylene gas is used for
During dehydration of alcohols to alkenes by heating with concentrated $H _{2} SO _{4}$ the initiation step is :
DNA is a polymer of
Which of the following is free-living, aerobic and non-photosynthetic nitrogen fixing bacterium?