List of practice Questions

Property of the alkaline earth metals that increases with their atomic number is

Which of the following do not have tetrahedral geometry?

Molar heat of vaporisation of a liquid is $6 \,kJ\, mol^{-1}$. If the entropy change is $16 \,J \,mol^{-1}\, K^{-1}$, the boiling point of the liquid is

A compound $A$ has a molecular formula $C_2Cl_3OH$. It reduces Fehling's solution and on oxidation, gives a monocarboxylic acid $B$. $A$ can be obtained by the action of chlorine on ethyl alcohol. $A$ is

What is true of urea biosynthesis?

Choose the correct statement.

If a biochemical analysis of mitochondria has to be done, the best procedure would be

Which of the following statement is true?

Pith cavity occurs in the stem of

Pollination in Rafflesia is occurred by

The small projections present on the surface of pineapple fruit represent

Which one of the following is referred as 'living fossils'?

A colour blind man marry with a daughter of colour blind father, the generation will be

The moment of inertia of a disc of mass $M$ and radius $R$ about an axis, which is tangential to the circumference of the disc and parallel to its diameter is

Select the animal that exhibits retrogressive metamorphosis.

In terms of basic units of mass $(M)$, length $(L)$, time $(T) $ and charge $(Q)$, the dimensions of magnetic permeability of vacuum $(\mu_0)$ would be

A massless rod $S$ having length $2 l$ has equal point masses attached to its two ends as shown in figure. The rod is rotating about an axis passing through its centre and making angle $\alpha$ with the axis. The magnitude of change of momentum of rod i.e. $\left|\frac{d L}{d t}\right|$ equals

A semiconductor having electron and hole mobilities $\mu_{n}$ and $\mu_{p}$ respectively. if its intrinsic carrier density is $n_{i}$, then what will be the value of hole concentration $P$ for which the conductivity will be minimum at a given temperature?

Two spherical nuclei have mass numbers $216$ and $64$ with their radii $R_{1}$ and $R_{2}$ respectively. The ratio, $\frac{R_{1}}{R_{2}}$ is equal to

A uniform disc is acted by two equal forces of magnitude $F$. One of them, acts tangentially to the disc, while other one is acting at the central point of the disc. The friction between disc surface and ground surface is $n F$. If $r$ be the radius of the disc, then the value of $n$ would be (in $N$)

A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperature slightly, then

The Boolean expression $P+\bar{P} Q$, where $P$ and $Q$ are the inputs of the logic circuit, represents

While keeping area of cross-section of a solenoid same, the number of turns and length of solenoid one both doubled. The self inductance of the coil will be

The reaction of a primary amine with chloroform and ethanolic solution of $KOH$ is called

Which of the following pairs has the same size?