List of top Chemistry Questions asked in KEAM

\[ 2X(g) \rightleftharpoons 2Y(g) + Z(g) \]

$K_C$ at 400K is $1 \times 10^{-3}$ mol L^-1. What is the value of $K_P$ for the equilibrium at 400K?

\[ R = 0.082 \, \text{L atm K}^{-1} \, \text{mol}^{-1} \]

Which of the following changes alone would cause increase in the value of the equilibrium constant of the reaction?
$PCl_5(g) \rightarrow PCl_3(g) + Cl_2(g); \Delta H>0$

Which of the following is an example of pseudo first order reaction?

Which of the following molecules has two sigma ($\sigma$) and two pi ($\pi$) bonds?

0.1 M HCl and 0.1 M H₂SO₄ each of volume 2 mL are mixed and the volume is made up to 6 mL by adding 2 mL of 0.01 N NaCl solution. The pH of the resulting mixture is

The molar enthalpy of vaporization of water at 1 bar and $100^\circ$C is 41 kJ mol$^{-1}$. What is the internal energy change when 1 mol of water is vaporized at 1 bar pressure and $100^\circ$C? Assume water vapor as a perfect gas. (R = 8.3 J K$^{-1}$ mol$^{-1}$)

Octet rule is obeyed in

The element with atomic number 111 was first named as Unununnium. What is its IUPAC name?

The number of S-S bonds and the number of lone pairs in S₈molecule,respectively,are:

Which order is correct in spectrochemical series of ligands:

The tetrahedral crystal field splitting is only____of the octahedral splitting.

Match the following complexes (P) with the geometry (Q)

	P		Q
a	[Cu(NH₃)₄]²⁺	i	Tetrahedral
b	[Ag(NH₃)₂]⁺	ii	Octahedral
c	Fe(CO)₅	iii	Square planar
d	[Cr(H₂O)₆]³⁺	iv	Triagonal bipyramidal
e	[NiCl₄]^2-	v	Linear