List of top Chemistry Questions asked in KEAM

One mole of solid iron was vaporized in an oven at its boiling point of 3443 K and enthalpy of vaporization of iron is 344.3 kJ mol$^{-1}$. The value of entropy vaporization (in J mol$^{-1}$) of iron is

Pick out the wrong statement

The repeating unit present in Nylon $6$ is

Which one of the following is not a neurologically active drug?

Two fast moving particles X and Y are associated with de Broglie wavelengths 1 nm and 4 nm respectively. If mass of X is nine times the mass of Y, the ratio of kinetic energies of X and Y would be

Which one of the following is not an allylic halide?

The wavelength (in cm) of second line in the Lyman series of hydrogen atomic spectrum is (Rydberg constant = R cm$^{-1}$)

Which one of the following reaction provides a primary alcohol?

Which of the following compounds are optically active? (i) 3-hydroxypentane$\quad$$\quad$ (ii) 2-aminopropanoic acid (iii) 2-chlorobutane $\quad$$\quad$(iv) 2-methylbutane Choose your answer from the codes given below

The group 13 element that is liquid during summer and used for measuring high temperature is

The element with positive electron gain enthalpy is

One mole of propanone and one mole of formaldehyde are the products of ozonolysis of one mole of an alkene. The alkene may be

The correct IUPAC name of the following compound is

Only $sp$ and $sp$ hybrid orbitals are involved in the formation of

The electrolyte used in Leclanche cell is

The geometry of ammonium ion is

The element that does not show catenation among the following $p$-block elements is

The electrode potential E$_{\left(\frac{Zn^{2+}}{Zn}\right)}$ of a zinc electrode at 25$^{\circ}$C with an aqueous solution of 0.1M $ZnSO_4$ is (E$^{\circ}$$_{\left(\frac{Zn^{2+}}{Zn}\right)}$ = -0.76 V. Assume $\frac{2.303RT}{F} =$ 0.06 at 298 K)

Which one of the following forms the constituent of cell wall of plant cells?

Which one of the following is not used as a filler in laundry soaps?

Which one of the following is the correct order of field strength of ligands in spectrochemical series?

Phenol can be converted to o-hydroxybenzaldehyde by

Zeigler-Natta catalyst is used to prepare

Which of the following compounds has least boiling point?

The system that forms maximum boiling azeotrope is