List of top Chemistry Questions asked in KEAM

Which one of the following compounds can exhibit both optical isomerism and geometrical isomerism?
The order of decreasing acid strength of carboxylic acids is:

In the Carius method of estimation of halogen, 0.4g of an organic compound gave 0.188g of AgBr. What is the percentage of bromine in the organic compound? (The atomic mass of Ag = 108 g mol\(^{-1}\) & Br = 80 g mol\(^{-1}\))

The IUPAC name of the complex \( [\text{Cr(NH}_3)_3(\text{H}_2\text{O})_3]\text{Cl}_3 \) is:

For which one of the following equilibria, \( K_P = K_C \)?
Which of the following molecule has the highest dipole moment?
Which of the following isoelectronic species has the smallest radius?
The correct electronic configuration of Tc (Z = 43) is:
The IUPAC name of the co-ordination compound \([Co(NH_3)_4(H_2O)Cl]Cl_2\) is:
In which of the following equilibrium, increase in pressure shifts the equilibrium in the forward direction?
Which is the incorrect statement with regard to 1-phenylethanol?
The observed molecular weight of a 1:1 strong electrolyte is 117 g mol\(^{-1}\) as determined by the depression of freezing point method. Its theoretical molecular weight is 60 g mol\(^{-1}\). The percentage dissociation of the electrolyte is:
What is the mass of water formed when 1.6 g of methane gas is completely burnt in excess oxygen?

What is the total number of sigma bonds found in the following compound?
\[ \text{CH}_3\text{CH} = \text{C} = \text{CH} - \text{C} \equiv \text{C} - \text{H} \]

In Dumas method of nitrogen estimation, 0.14 g of an organic compound gave 22.4 mL of nitrogen at STP. The percentage of nitrogen in the compound is:
The number of angular and radial nodes present in '4d' orbitals are respectively:

Which of the following carboxylic acids has the highest pKa?
 

The sum of the oxidation numbers of all the carbon and oxygen atoms in carbonate ion is:
Some enzyme catalysed reactions which occur at metal surfaces are:
Thermal decomposition of a compound X follows first order kinetics. The initial concentration of X is 2 mol L\(^{-1}\). It decreased to 0.125 mol L\(^{-1}\) in one hour at 400K. What is the half-life period of the reaction at 400K? (log 2 = 0.3010)
Which of the following aqueous mixture is a buffer solution?
The bond order of \( O_2 \) molecule and its magnetic property are respectively:
Which of the following base is not present in RNA molecule?
Which of the following cannot be prepared by the reduction of either a ketone or an aldehyde with NaBH\(_4\) in methanol?
What is the mass of crystalline oxalic acid (molar mass = 126 g/mol) present in 50 mL of 0.02N aqueous oxalic acid solution?