List of top Chemistry Questions

An example of a sulphur containing amino acid is
When phenol is treated with chloromethane in presence of $AlCl_3$ we get
The metal hydroxide which is soluble in excess of ammonium hydroxide is
The ebullioscopic constant is the elevation in boiling point produced by
Pure water is neutral because
Which one of the following order is correct for the first ionisation energies of the elements ?
In the Molisch reagent, the substance used is
The $pH$ value of $1 \times 10^{-4} \,M \,NaOH$ solution is
The chemical entities present in thermosphere of the atmosphere
Half-life period of a first order reaction is $1386\, s.$ The specific rate constant of the reaction is
The degree of dissociation of a $ 0.01\, M $ weak acid is $ 10^{-3} $ . Its $ pOH $ is
Which one of the following aqueous solutions of salts has the lowest, pH value?
How much volume of oxygen at $STP$, in litre is required to burn $4\,g$ of methane gas completely?
If the de-Broglie wavelength of a particle of mass $m$ is $100$ times its velocity then its value in terms of its mass $ (m) $ and Plants constant $ (h) $ is
The non-existant metal carbonyl among the following is
The catalyst used for olefin polymerization is
The monomer used to produce orlon is
Of the following compounds the most acidic is
Which one of the following formulae does not represent an organic compound?
An organic compound on heating with $CuO$ produces $CO_2$, but no water. The organic compound may be
Decreasing order of stability of ions is (i) $\quad$$CH_3 - C^+H - CH_3$ (ii) $\quad$$CH_3-C^+H-OCH_3$ (iii) $\quad$$CH_3 - C^+H - COCH_3$
In the balanced chemical reaction $IO^{-}_{3}+aI^{-}+bH^{+}\to cH_{2}O+ dI_{2}$ $a, b, c$ and $d$ respectively corresponds to
Ribose sugar is present in
IUPAC name of $(CH_3)_3CCl$
The rate equation for a reaction : $A \rightarrow B$ is $r = K[A]^\circ$. If the initial concentration of the reactant is a mol $dm^{-3}$, the half life period of the reaction is