List of practice Questions

Tollen's test can be used to distinguish

Anode reaction of a fuel cell is

To coagulate gelatin sol, which one of the following is most effective?

Which will undergo $S _{ N } 2$ reaction faster?

Reaction of propene with diborane followed alkaline hydrolysis in the presence of hydrogen peroxide gives

The basicity of aniline is less than that of cyclohexylamine. This is due to

Which of the following is not an example of redox reaction?

Which one of the following is a mineral of iron ?

Which of the following are the longest wavelength?

What is the wavelength of the most energetic photon emitted in the Balmer series of the hydrogen atom?

Type of ovule in which funicle is attached to the body of ovules at right angles is

Two solenoids of equal number of turns having their length and the radii in the same ratio $1 : 2$. The ratio of their self-inductance will be

Two uniform strings $A$ and $B$ made of steel are made to vibrate under the same tension. If the first overtone of $A$ is equal to the second overtone of $B$ and if the radius of $A$ is twice that of $B$, the ratio of the lengths of the strings is

Two rings of radii $R$ and $nR$ made up of same material have the ratio of moment of inertia about an axis passing through centre is 1 : 8. The value of $n$ is

The peritubular capillaries of the nephron arise from the

The orbital angular momentum of a p-electron is given as

The number of photons of wavelength of 540 nm emitted per second by an electric bulb of power 100 W is (Given $h ={ 6 \times 10^{-34} \,J \, s})$

The ${IUPAC}$ name of ${[Co(NH3)6] [Cr(C2O4)3]}$ is

The bond angle in ${H_2O}$ is $104.5?$. This fact can be best explained with the help of

The angular momentum of electron in $3d$ orbital of an atom is

Power dissipated across the $8 \,\Omega$ resistor in the circuit shown here is 2 watt. The power dissipated in watt units across the $3 \,\Omega$ resistor is :-

In Krebs cycle OAA accepts acetyl CoA to form

In barley stem vascular bundles are

Freon used as refrigerant is

Enamel of tooth is secreted by