List of practice Questions

The correct order of solubility in water for $He, Ne, Ar, Kr, Xe$ is

Spectrum of $Li^{2+}$ is similar to that of

If $P$ is pressure and $\rho$ is density of a gas, then $P$ and $\rho$ are related as

The intermediate formed in aldol condensation is

The compound most suitable for the preparation of cyanohydrin is

Absolute values of internal energy of substances can not be determined. It is impossible to determine exact values of constituent energies of the substances.

If a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, the offsprings will be

An astronomical telescope has a large aperture to :

Which of the following electronic configurations has maximum energy?

If turgor pressure becomes equal to the wall pressure, then

Which of the following structures helps in the respiration of lichens?

Passage cells are found in

The sites of the first, second and third moulting of the Ascaris larva are respectively

Adults of Wuchereria bancrofti attacks

Which of the following Phyla are included in Enterozoa?

In Entamoeba histolytica, the presence of chromatid bodies is characteristic of

Ambulacral grooves are absent in the living forms of the Class

Which of the following are uricotelic animals?

Alum helps in purifying water by

According to Wein's displacement law

Number of electrons transferred in each case when $KMnO_4$ acts as an oxidising agent to give $MnO_2,Mn^{2+},Mn(OH)_3$ and $MnO^{2-}_4$ are repectively

The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing power of the cationic species, $K^+, Ca^{2+}, Mg^{2+}, Be^{2+}$

Which one of the following spherical lenses does not exhibit dispersion? The radii of curvature of the surfaces of the lenses are as given in the diagrams

Which of the following is absent in polluted water:-

Which of the following species represent the example of $dsp^2$ -hybridization ?