List of top Chemistry Questions

Alcohols are isomeric with :

A nuclide of an alkaline earth metal undergoes radioactive decay by emission of three $\alpha$-particles in succession. The group of the periodic table to which the resulting daughter element would belong is

Which of the properties of interstitial hydrides is correct ?

Which amongst the following is the most stable carbocation?

In a face centred cubic (fcc) lattice, a unit cell is shared equally by how many unit cells?

$ {{H}_{2}}{{O}_{2}} $ is manufactured these days:

Strongest nucleophile is:

An atom of an element $A$ has three electrons in its outermost orbit and that of $B$ has six electrons in its outermost orbit. The formula of the compound between these two will be

Which one of the following compounds is most acidic ?

During the process of electrolytic refining of copper, some metals present as impurity settle as ??node mud?

Which one of the following species is diamagnetic in nature ?

Which of the following oxides is amphoteric in character ?

Which of the following is a polyamide ?

A gas can be liquefied :

In Hall's process the main reagent is mixed with:

If a substance with half-life $3$ days is taken at other place in $12$ days, what amount of substance is left now ?

If $0.1\, M$ of a weak acid is taken and its percentage of degree of ionization is $1.34 \%$, then its ionization constant will be :

Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other, in

An aqueous solution of $CoCl_2$ on addition of excess of concentrated $HCl$ turns blue due to formation of

In which of the following pairs both the complexes show optical isomerism?

In diborane, the two $H-B-H$ angles are nearly :

Among the following molecules (i)$\overset{\bullet \bullet}{Xe}O_{3}$ (ii)$\overset{\bullet \bullet}{Xe}OF_4$ (iii)$\overset{\bullet \bullet}{Xe}F_6$ those having same number of lone pairs on $Xe$ are

: $SeCl_4$ does not have a tetrahedral structure. :$Se$ in $SeCl_4$ has two lone pairs.

$CH_3CO_2C_2H_5$ on reaction with sodium ethoxide in ethanol gives $A$, which on heating in the presence of acid gives $B$. Compound $B$ is

Which one of the following statements is true for protein synthesis (translation)?