List of top Chemistry Questions

Which of the following is true for spontaneous adsorption of $H_2$ gas without dissociation on solid surface
A first order reaction has a specific reaction rate of $10^{-2} \, sec^{-1}$. How much time will it take for $20\, g$ of the reactant to reduce to $5\, g$ ?
According to crystal field theory, the $M - L$ bond in a complex is
Which one of the following has (have) octahedral geometry ? (i) $SbCl^{-}_6$ (ii) $SnCl^{2-}_6$ (iii) $XeF_6$ (iv) $IO^{5-}_6$
Butadiene and styrene undergoes joint polymerization to form
What are the structural units of proteins?
Gabneil's pthalimide reaction is used for the synthesis of
RMgX + CN Cl → X.X is
If a bond breaks in such a way that both electrons remain with one fragment, the mechanism is called
Select the substance which has only one Pi (π) bond in its molecule.
Which of the following reagents can convert acetone to acetic acid?
Process in which solid is directly converted to vapors state is called
The isocyanates obtained in the reaction of Hoffman, Curtius, Lossen and Schimdt. Hydrolysed to give
Olefin means
this on boiling with NaOH gives on boiling with NaOH gives
Phenolphthalein can be used to determine pH over the range of
The correct order of increasing basicity of the given conjugate bases (R = CH3) is
When sodium acetate is added to acetic acid, the degree of ionisation of acetic acid
In paper chromatography, the stationary and mobile phases are
Which of the following relation between average life period (ℓ) and the disintegration constant (λ) and the disintegration constant (λ) of the radio element is correct
The rays from the radioactive element which gets deflected to the positive pole under strong electric field are called
The relationship between equilibrium constant K and free energy change of the process is given by
Identify the correct statement regarding a spontaneous process
Which of the following salt will have same value of Vant Hoff's factor, 'i' as that of K4[Fe(CN)6] ?
Which of the following species has the maximum bond order?