List of top Chemistry Questions

Which of the following is disproportionation reaction?
Arrange the following polymers in increasing order of their intermolecular forces.
Nylon-6, 6, buna-S, polythene, neoprene
The compounds The compounds are distinguished byand The compounds are distinguished by are distinguished by
Alkali metals readily dissolve in liquid ammonia to give blue coloured solutions. The blue colour is believed to be due to
Which of the following is not a surfactant?
In the reversible reaction, \(2NO_2⇋ N_2O_4\) the rate of disappearance of \(NO_2\) is equal to
For the electrochemical cell, \(Ag^-|AgCI|KCI ||AgNO_3|Ag^+\), the overall cell reaction is
If \(E°(Zn^{2+},Zn)=-0.763\ V\) and \(E°(Fe^{2+},Fe)=-0.44\ V\), then the emf of the cell \(Zn/Zn^{2+}(a=0.001)||Fe^{2+}(a=0.005) Fe\) is
The van't Hoff factor for \(0.1\ M \ Ba(NO_3)_2\), solution is \(2.74\). The degree of dissociation is
Bleeding due to a cut can be stopped by applying ferric chloride solution in the laboratory. This is due to
Which one of the following electrolytes has the same value of van't Hoff factor \((i)\) as that of \(K_4[Fe(CN)_6]\) ?
The IUPAC name of the following compound is
IUPAC name
For the dot structure shown, the most likely elements X = ____ and Y = ____ are
most likely elements X=__ and Y=__
Valence electrons in the element \(X\) are 3 and that in element \(Y\) is 6. Most probable compound formed from \(X\) and \(Y\) is
A compound, containing only carbon, hydrogen and oxygen has a molecular weight of 44. On complete oxidation, it is converted into a compound of molecular weight is 60. The original compound is
In Kjeldahl's method, the nitrogen present in an organic compound is quantitatively converted into
Product P is
Product P is :
Conversion of oxygen into ozone is non-spontaneous at
Which of the following is correct statement?
If \(Na^+\) ion is larger than \(Mg^{2+}\) ions and \(S^{2-}\) ion is larger than \(Cl^-\) ion, which of the following will be stable salt in water ?
An atom forms face centered cubic crystal with density d=8.92 g/mL and edge length a=3.6×10-8 cm. The molecular mass of atom in amu is
In a crystalline sold, having formula \(XY_2O_4\), oxide ions are arranged in cubic close packed lattice while cations \(X\) are present is tetrahedral voids and cations \(Y\) are present in octahedral voids. The percentage of tetrahedral voids occupied by \(X\) is
Among the following, the non-aromatic heterocyclic compound is
The value of Kc for the reaction, \(2A⇋B+C\) is \(2×10^{-3}\). At a given time,the composition of reaction mixture is \([A]=[B]=[C]=3×10^{-4}\ M\). In which direction, the reaction will proceed?
Which of the following chemicals are used to manufacture methyl isocyanate that caused Bhopal tragedy?
(i) Methylamine
(ii) Phosgene
(iii) Phosphine
(iv) Dimethylamine