List of top Chemistry Questions asked in AIEEE

Due to the presence of an unpaired electron, free radicals are:

Which types of isomerism is shown by $2, 3$-dichlorobutane ?

For the reaction $ {2NO2(g) <=> 2\,NO(g) + O2(g)}$ $\left(K_{c} = 1.8\times10^{-6} \,at \,184^{\circ}C\right)$ $\left(R = 0.00831 \,k J/\left(mol. K\right)\right)$ When $K_{p}$ and $K_{c}$ are compared at $184^{\circ}$ C it is found that :

Hydrogen ion concentration in mol/L in a solution of pH = 5.4 will be :

What is the conjugate base of $OH^-$ ?

Hydrogen bomb is based on the principle of :

The temperature-entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is:

The highest electrical conductivity of the following aqueous solutions is of:

Which of the following is electron deficient molecule ?

Which of the following is fully fluorinated polymer ?

Which of the following would have a permanent dipole moment ?

Which of the following factors may be regarded as the main cause of lanthanide contraction ?

The value of the "spin only" magnetic moment for one of the following configurations is 2.84 BM. The correct one is :

The structure of diborane $(B_2H_6)$ contains :

The oxidation state of Cr in $[Cr(NH_3)_4Cl_2]^+$ is :

The lanthanide contraction is responsible for the fact that:

The elevation in boiling point, when 13.44 g of freshly prepared CuCI$_2$ are added to one kilogram of water, is . [Some useful data, K$_b = 0.52 K kg mol^{-1}$, molecular weight of CuCl$_2$ =134.4 g]

The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectively. Which of the following statements is not correct ?

The correct order of the thermal stability of hydrogen halides (H - X)is :

Polymer formation from monomers starts by

Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is :

For a spontaneous reaction the $\Delta$G, equilibrium constant (K) and $E^{\circ}_{cell}$ will be respectively :

Elimination of bromine from 2-bromobutane results in the formation of :

Calomel $(Hg_2Cl_2)$ on reaction with ammonium hydroxide gives :

An organic compound having molecular mass 60 is found to contain C = 20%, H = 6.67% and N = 46.67% while rest is oxygen. On heating it gives $NH_3$ alongwith?? solid residue. The solid residue give violet colour with alkaline copper sulphate solution. The compound is :