List of top Questions asked in KEAM- 2015

Out of the following isomeric alcohols containing five carbon atoms, the alcohol that exhibits optical isomerism is

In DNA, the consecutive deoxynucleotides are connected by

Which one of the following is an allylic halide?

Which one of the following compounds shows cis-trans isomerism?

When methane is heated with dioxygen in the presence of Mo$_2$O$_3$ catalyst, the organic product obtained is

Among the following, the ambident nucleophile is

Isomers which can be interconverted through rotation about C–C single bond are

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

The chelating ligand used to remove excess of copper and iron in chelate therapy is

Glycerol can be separated from spent-lye in soap industry by

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

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

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 $Pt^{4+}$?}

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

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

Choose the correct match

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 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?

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}

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