List of top Chemistry Questions

Bleeding due to a cut can be stopped by applying ferric chloride solution in the laboratory. This is due to

In Kjeldahl's method, the nitrogen present in an organic compound is quantitatively converted into

For the dot structure shown, the most likely elements X = ____ and Y = ____ are

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

Valence electrons in the element \(X\) are 3 and that in element \(Y\) is 6. Most probable compound formed from \(X\) and \(Y\) is

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 ?

Product P 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

Conversion of oxygen into ozone is non-spontaneous at

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

Which of the following is correct statement?

The correct order of ease of adsorption of the hydrated alkali metal ions on an ion exchange resin 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

Among the following, the non-aromatic heterocyclic compound is

The correct formula for plaster of Paris is

Which one of the following represents the correct structure of cellulose?

For the following reaction,
\(2NH_3(g)+CO_2(g)⇋NH_2CONH_2(aq)+H_2O(l)\)
△G°=-13.6 kJmol^-1 at 298 K. Then log K_eq for this eq equilibrium is

Xenon hexafluoride reacts with silica to form a compound \(X\). The oxidation state of xenon in \(X\) is

In the reaction,

The major product formed is:

Lead is extracted from galena (PbS), either by following ways.

Neopentyl chloride reacts with benzene in presence of a Lewis acid \((AlCI_3)\) to form

Which one of the following species is paramagnetic in nature?

Final product will be:

Oxidation number of \(Cr\) in \([Cr(NH_3)_4Cl_2]^+\)