List of top Chemistry Questions

The oxidation number of oxygen in $KO _{3}, Na _{2} O _{2}$ is
Reaction of $PCl _{3}$ and $PhMgBr$ would give
The magnetic moment of a salt containing $Zn ^{2+}$ ion is
The molar conductivities of $KCl, NaCl$ and $KNO_3$ are $152, 128 $ and $111\, S\,cm^2\, mol^{-1}$ respectively. What is the molar conductivity of $NaNO_3$?
The IUPAC name of the given compound $\left[ Co \left( NH _{3}\right)_{5} Cl \right] Cl _{2}$ is
The number of unpaired electrons calculated in $[Co (NH_3)_6]^{3+}$ and $Co (F_6)Z^{3-}$ are
The number of formula units of calcium fluoride, $CaF _{2}$ present in $146.4\, g$ of $CaF _{2}$ (the molar mass of $CaF _{2}$ is $78.08 \,g / mol$ ) is
The number of hydrogen atoms present in $25.6\, g$ of sucrose $\left( C _{12} H _{22} O _{11}\right)$ which has a molar mass of $342.3\, g$ is
A gas deviates from ideal behaviour at a high pressure because its molecules
The monomers of buna-$S$ rubber are
Mesomeric effect involves delocalisation of
The calculated bond order of superoxide ion $(O_2^- )$ is
Which of the following electrolytic solutions has the least specific conductance ?
Which of the following is considered as an anticancer species?
Volume occupied by one molecule of water $(density\, = 1 g\, cm^{-3} )$ is
$80\,g$ of oxygen contains as many atoms as in
$10 \,cm^3$ of $0.1\, N$ monobasic acid requires $15 \,cm^3$ of sodium hydroxide solution whose normality is
Which of the following species does not exert a resonance effect ?
Malleability and ductility of metals can be accounted due to
Which is the most easily liquifiable rare gas ?
Which of the following can be measured by the Ostwald-Walker dynamic method ?
The angle strain in cyclobutane is
When compared to $\Delta G^\circ$ for the formation of $Al_2O_3$, the $\Delta G^\circ$ for the formation of $Cr_2O_3$ is
Mass of $0.1\, mole$ of methane is
Which among the following factors is the most important in making fluorine the strongest oxidising agent?