List of top Chemistry Questions

Correct order of freezing point of $ 1\,M $ solution of sucrose, $ KCl,\,BaCl_{2}$ and $ AlCl_{3}$ is
The condensation polymer among the following is
$5$ moles of $SO_2$ and $5$ moles of $O_2$ are allowed to react. At equilibrium, it was found that $60\% $ of $SO_2$ is used up. If the partial pressure of the equilibrium mixture is one atmosphere, the partial pressure of $O_2$, is
In the reaction $BrO _{3}^{-}( aq )+5 Br ^{-}( aq )+6 H ^{+} \rightarrow 3 Br _{2}(l)+3 H _{2} O (l)$ The rate of appearance of bromine $\left( Br _{2}\right)$ is related to rate of disappearance of bromide ions as following
Which one of the following is strongest Lewis acid ?
The percentage of carbon in cast iron is
Which one of the following molecules is paramagnetic?
The molar mass of the solute sodium hydroxide obtained from the measurement of the osmotic pressure of its aqueous solution at $27^{\circ} C$ is $25 \,g \,mol ^{-1}$. Therefore, its ionization percentage in this solution is
The most acidic among the following is
Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution?
The auto reduction process is not used in the metallurgy of
If the ratio of the rates of diffusion of two gases $A$ and $B$ is $4 : 1$, the ratio of their densities in the same order is
The oxidation numbers of the sulphur atoms in peroxomonosulphuric acid $ (H_{2}SO_{5}) $ and peroxodisulphuric acid $ (H_{2}S_{2}O_{8}) $ are respectively

Which one of the following is \(d\) block element?

The composition of bell metal is
Which of the following has maximum laevorotatory nature ?
Which one of the following is aromatic?
The number of molecules in $18 \,mg$ of water in terms of Avogadro number $N$ is
The set of quantum numbers $ n=4,l=0 $ and $ s=+\frac{1}{2} $ correspond to the most loosely bound, ground state electron of which one of the following atoms?
The solubility product of a sparingly soluble metal hydroxide $M ( OH )_{2}$ at $298 \,K$ is $5 \times 10^{-16} mol ^{3} d m^{-9}$. The $pH$ value of its aqueous and saturated solution is

Parkinson's disease is linked to abnormalities in the levels of dopamine in the body. The structure of dopamine is
Aluminium reacts with NaOH and forms compound 'X'. If the coordination number of aluminium in 'X' is 6, the correct formula of X is
The total number of acyclic structural and optical isomers possible for a hydrocarbon of molecular formula $ C_{7}H_{16} $ is
The bacteriostatic antibiotic among the following is
In which one of the following equilibria, the increase of pressure over the equilibrium will favour the reaction?