List of practice Questions

The set of quantum numbers for the outermost electron for copper in its ground state is ___________
The set of real values of x for which $ f(x) = \frac {x}{log\, x}$ increasing, is
$P_4O_{10}$ is the anhydride of
If $y'' - 3y' + 2y = 0$ where $y(0) = 1$, $y'(0) = 0$, then the value of $y$ at $x \,= log_e \,2$ is
All pathogens are parasites but all parasites are not pathogens. Majority of the parasites confer benefits to the host.
For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because
In a parallel plate capacitor, the capacity increases if
The orbital frequency of an electron in the hydrogen atom is proportional to
Which of the following relation is true?
The equation of a simple harmonic progressive wave is given by $ y = A \,sin \,(100\, \pi t - 3x) $ . Find the distance between $ 2 $ particles having a phase difference of $ \frac{\pi}{3} $ .
Keto-enol tautomerism is not observed in
The molecule which has zero dipole moment is
The binding energy per nucleon, for nuclei with atomic mass number $A > 100$ decreases with $A$. The nuclear forces are weak for heavier nuclei.
Treatment of acetaldehyde with ethyl magnesium bromide and subsequent hydrolysis gives
Among the following, the formula of saturated fatty acid is
For an opaque body coefficient of transmission is
The correct order of dehydration of alcohols is
Which is not an example of common ion effect?
A transformer cannot work on $DC$ supply. $DC$ changes neither in magnitude nor in direction.
Half-life of a radioactive substance is $20$ minute. The time between $20\%$ and $80\%$ decay will be :
The decimal equivalent of the binary number $(11010.101)_2$ is
A ball is projected horizontally with a velocity of $5 \,m/s$ from the top of a building $19.6\, m$ high. How long will the ball take of hit the ground ?
Two solid spheres of same metal but of mass $M$ and $8\,M$ fall simultaneously on a viscous liquid and their terminal velocities are $v$ and $nv$, then value of $n$ is
In Young�s double slit experiment, the fringe width is $\beta$. If the entire arrangement is placed in a liquid of refractive index $n$, the fringe width becomes :
Peroxide ion ___________ a) is diamagnetic b) has five completely filled antibonding molecular orbitals c) is isoelectronic with neon d) has bond order one. Which one of these is correct?