List of top Chemistry Questions asked in MET

$10^{-6}$ M NaOH is diluted 100 times. The pH of the diluted base is
An organic compound X is oxidised by using acidified $K_{2}Cr_{2}O_{7}$. The product obtained reacts with phenylhydrazine but does not give silver mirror test. The possible structure of X is
The oxide of an element whose electronic configuration is $1s^{2}, 2s^{2}, 2p^{6}, 3s^{1}$ is
The order of stability of metal oxides is
The temperature of the slag zone in the metallurgy of iron using blast furnace is
The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is
A 6% solution of urea is isotonic with
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
An aqueous solution containing 6.5 g of NaCl of 90% purity was subjected to electrolysis. After the complete electrolysis, the solution was evaporated to get solid NaOH. The volume of 1 M acetic acid required to neutralise NaOH obtained above is
2 g of a radioactive sample having half-life of 15 days was synthesised on 1st Jan 2009. The amount of the sample left behind on 1st March, 2009 (including both the days) is
Near a circular loop of conducting wire as shown in the figure an electron moves along a straight line. The direction of the induced current if any in the loop is
The magnetic dipole moment of a current loop is independent of
Hydrogen atom from excited state comes to the ground stage by emitting a photon of wavelength λ. If R is the Rydberg constant, the principal quantum number n of the excited state is
Young's double slit experiment gives interference fringes of width 0.3 mm. A thin glass plate made of material of refractive index 1.5 is kept in the path of light from one of the slits, then the fringe width becomes
The charge deposited on 4 µF capacitor in the circuit is
A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side of the principal axis, the intensity of light
A coil of n number of turns is wound tightly in the form of a spiral with inner and outer radii a and b respectively. When a current of strength I is passed through the coil, the magnetic field at its centre is
Continuous emission spectrum is produced by
The surface temperature of the stars is determined using
A galvanometer of resistance 240 $\Omega$ allows only 4% of the main current after connecting a shunt resistance. The value of the shunt resistance is
$y = 3 \sin \pi(\frac{t}{2} - \frac{x}{4})$ represents an equation of a progressive wave, where t is in second and x is in metre. The distance travelled by the wave in 5 s is
The phenomena in which proton flips is
According to the quark model, it is possible to build all the hadrons using
A cylindrical tube open at both the ends has a fundamental frequency of 390 Hz in air. If 1/4th of the tube is immersed vertically in water the fundamental frequency of air column is
A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is