List of top Chemistry Questions

For Freundlich isotherm a graph of log $\frac {x}{m}$ is plotted against $log\, P$. The slope of the line and its y-axis intercept, respectively corresponds to
Butylated hydroxy toluene as a food additive acts as
Enthalpy of combustion of carbon to $CO _{2}$ is $-393.5 \,kJ \,mol ^{-1}$. What amount of heat will be released upon formation of $35.2 \,g$ of $CO _{2}$ from carbon and oxygen gas?
Which of the following compounds undergoes nitration more readily?
Which of the following is paramagnetic ?
In which of the following exothermic reactions, the heat liberated per mole is the highest ?
The reaction of phenol with benzoyl chloride to give phenyl benzoate is known as :
$6$ litres of an alkene require $27$ litres of oxygen at constant temperature and pressure for complete combustion. The alkene is:
Arrange in the correct order of stability (decreasing order) for the following molecules :
Which of the following compounds will not undergo Friedal-Craft's reaction easily?
The molarity of a solution obtained by mixing $750\, mL$ of $0.5\, M \,HCl$ with $250\, mL$ of $2 \,M \,HCl$ will be
The order of basicity of amines in gaseous state is:
The correct set of four quantum numbers for the valence electrons of rubidium atom $(Z = 37)$ is
Sodium Carbonate cannot be used in place of $(NH_4)_2CO_3$ for the identification of $Ca^{2+},\, Ba^{2+}$ and $Sr^{2+}$ ions (in group V) during mixture analysis because :
Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are)
Equimolar solutions of the following compounds are prepared separately in water. Which will have the lowest pH value ?
Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80-100°C forms which one of the following products ?
Which of the following is a polar molecule ?
The order of stability of the following tautomeric compounds is
Chemical structures of Carbon and Hydrogen
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating ?
The radical Chemical Structure is aromatic because it has
6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is
Which is the monomer of Neoprene in the following ?
In the reaction Chemical Structure A is
What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20°C to 35°C ? (R = 8.314 J mol-1 K-1)