List of top Questions asked in KEAM

The correct ascending order of ligand field strengths of the given ligands is

An organic compound contains 90% carbon and 10% hydrogen by mass. Its empirical formula is

The IUPAC name of (CH$_3$)$_3$C–CH = CH$_2$ is

For the reaction $X \rightarrow Y$, the concentrations of $X$ are 1.2M, 0.6M, 0.3M and 0.15M at 0, 1, 2 and 3 hours respectively. The order of the reaction is

How many moles of platinum will be deposited on the cathode when 0.60 F of electricity is passed through a 1.0 M solution of $Pt^{4+}$?}

The enzyme that converts glucose into ethyl alcohol and carbon dioxide is

List I contains the type of colloid while List II contains the examples

Choose the correct match

The half-life period of a first order reaction having rate constant $k = 0.231 \times 10^{-10}$ s$^{-1}$ will be}

The standard electrode potentials of Zn and Ni are respectively $-0.76$ V and $-0.25$ V. Then the standard emf of the spontaneous cell by coupling these under standard conditions is

18 g of glucose is dissolved in 178.2 g of water. The vapour pressure of the solution at 100$^\circ$C is (vapour pressure of pure water at 100$^\circ$C is 760 mm Hg)

Which one of the following binary liquid mixtures exhibit positive deviation from Raoult’s law?

Equilibrium constants are given for the following two equilibria: \[ (i)\; A_2(g) + B_2(g) \rightleftharpoons 2AB(g); \quad K_1 = 2 \times 10^{-4} \] \[ (ii)\; 2AB(g) + C_2(g) \rightleftharpoons 2ABC(g); \quad K_2 = 2 \times 10^{-2}\, L\, mol^{-1} \] Calculate the equilibrium constant for: \[ ABC(g) \rightleftharpoons \frac{1}{2}A_2(g) + \frac{1}{2}B_2(g) + \frac{1}{2}C_2(g) \]

If the ionic product of $M(OH)_2$ is $5 \times 10^{-10}$, then the molar solubility of $M(OH)_2$ in $0.1$ M NaOH is}

The equilibrium constant for the equilibrium $PCl_5(g) \rightleftharpoons PCl_3(g) + Cl_2(g)$ at a particular temperature is $2 \times 10^{-2}$ mol L$^{-1}$. The number of moles of $PCl_5$ that must be taken in a one-litre flask at the same temperature to obtain a concentration of $0.20$ mol of chlorine at equilibrium is}

The hardest lanthanide element is

Which one of the following has a different crystal lattice from those of the rest?

In which one of the following, d-d transition involves absorption in the ultraviolet region

The enthalpy change for a reaction at equilibrium is $-20.5$ kJ mol$^{-1}$. Then the entropy change for this equilibrium at 410 K is}

The enthalpy of combustion of glucose (molecular weight = 180 g mol$^{-1}$) is $-2840$ kJ mol$^{-1}$. Then the amount of heat evolved when $0.9$ g of glucose is burnt, will be}

The relative strengths of trichlorides of boron group to accept a pair of electron is given by

Which one of the following has the maximum number of P–OH bonds?

Match the following

The hybridised state of bromine in bromine pentafluoride is

In the metallurgy of zinc, the reducing agent employed in reducing the zinc oxide to crude zinc metal in the last stage is

Aluminium (Atomic mass = 27) crystallizes in a cubic system with edge length of 4 \AA. Its density is 2.7 g cm$^{-3}$. The number of aluminium atoms present per unit cell is}