List of top Questions asked in KCET, WBJEE

Which of the following can be measured by the Ostwald-Walker dynamic method ?
Which is the most easily liquifiable rare gas ?
The value of alternating emf $E$ in the given circuit will be
The angle strain in cyclobutane is
When compared to $\Delta G^\circ$ for the formation of $Al_2O_3$, the $\Delta G^\circ$ for the formation of $Cr_2O_3$ is
Mass of $0.1\, mole$ of methane is
The equation of a simple harmonic wave is given by $y = 6\, Sin\, 2\pi(2t - 0.1x)$, where $x$ and $y$ are in $mm$ and $t$ is in seconds. The phase difference between two particles $2\, mm$ apart at any instant is
On bombarding $U^{235}$ by slow neutron, $200\, MeV$ energy is released. If the power output of atomic reactor is $1.6\, MW$, then the rate of fission will be
The basic principle of Cottnell's precipitator is
Among the following, which is least acidic ?
The ratio of the nuclear radii of elements with mass numbers $216$ and $125$ is
The moment of inertia of a thin circular disc about an axis passing through its center and perpendicular to its plane is $1$. Then, the moment of inertia of the disc about an axis parallel to its diameter and touching the edge of the rim is
Of all the environmental factors which is the most influential in determining the rate of transpiration ?
Intercalary meristem is a derivative of
Plants like Aegle mormelos, Ocimum sanctum and Ficus religiosa are a group of plants designated as
Whether a child died after normal birth or before birth can be confirmed by measuring
The overlapping of orbitals in benzene is of the type
The IUPAC name for tertiary butyl iodide is
A ligand can also be regarded as
The coefficient of thermal conductivity of copper is $9$ times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel ?
A fish in water (refractive index $n$) looks at a bird vertically above in the air. If $y$ is the height of the bird and $x$ is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is
A body is projected vertically upwards. The times corresponding to height $h$ while ascending and while descending are $t_1$ and $t_2$ respectively. Then the velocity of projection is ($g$ is acceleration due to gravity).
A bullet emerge from a barrel of length $1.2\, m$ with a speed of $640\, ms ^{-1}$. Assuming constant acceleration, the approximate time that it spends in the barrel after the gun is fired is
Sodium nitrate on reduction with $Zn$ in presence of $NaOH$ solution produces $NH_3$ Mass of sodium nitrate absorbing $1$ mole of electron will be
A battery of e. m. f. $E$ and internal resistance $r$ is connected to an external resistance $R$ the condition for maximum power transfer is