List of top Chemistry Questions

Which contain maximum number of molecules?
The percentage of Calcium in CaCO\(_3\) is
Ammonia is commercially prepared by
Which one of the following is the standard for atomic mass?
Which of the following is not a nitrogenous fertilizer?
The number of neutrons in \(^{238}U\) is
Number of moles in 180 grams of water is
The metal which is found in the native state is
Accepting the definition that an acid is a proton donor, the acid in the following reaction
\[ NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^- \] is
An aqueous solution of Ferric chloride is
The volume of a gas at 1140 mm of Hg pressure and 546°C temperature is 150 litre. The volume of gas at S.T.P. will be
How many electrons an atom have in M shell whose atomic number is 19?
Soils of Western Rajasthan have a high content of
pH value of 0.0001 M HCl solution is
The metal that cannot displace hydrogen from dilute hydrochloric acid is
Work done during the expansion of a gas from a volume of \(4 \, \text{dm}^3\) to \(6 \, \text{dm}^3\) against a constant external pressure of 3 atm is (1 L atm = 101.32 J)
The correct order of Radii is
IUPAC name of
H\(_3\)C - C = CH - CH\(_2\) - CH\(_3\) Cl
Phenol with dilute HNO\(_3\) gives
The value of one Faraday charge is
Which of the following atoms would be paramagnetic?
Potassium chloride contains K-(Approximate)
Which gas is used in Electric Bulb?
The wavelength (in cm) of the second line in the Lyman series of the hydrogen atomic spectrum is (Rydberg constant \( R \, \text{cm}^{-1})\).
The bond order of \( O_2 \) molecule and its magnetic property are respectively: