List of top Chemistry Questions

\((NH_4)_2Cr_2O_7\) on heating liberates a gas. The same gas will be obtained by
Which noble gas has least tendency to form compounds ?
The property of halogens which is not correctly matched is
Which can adsorb larger volume of hydrogen gas ?
What will be the value of x in Fe++, if the magnetic moment \(\mu = \sqrt{24}\) BM
A transition metal exists in its highest oxygen state. It is expected to behave as
The strong reducing property of hypophosphorous acid due to
Half- life of a reaction is found to the inversely proportional to the fifth power of its initial concentration, the order of reaction is
For nth order of reaction, Half-life period is directly proportional to
For spontaneity of a cell, which is correct ?
Specific Conductance of 0.1 M HNO3 is 6.3 x 10-2 ohm -1 cm-1. The molar conductance of the solution is
Colloidal solution commonly used in the treatment of skin disease is
The rate of reaction:
\(\text{CH}_3\text{COOC}_2\text{H}_5 + \text{NaOH} \rightarrow \text{CH}_3\text{COONa} + \text{C}_2\text{H}_5\text{OH}\)
is given by the equation. Rate \(K[\text{CH}_2\text{COOC}_2\text{H}_5] [\text{NaOH}]\). If concentration is expressed in \(\text{mol L}^{-1}\). The unit of K is
A first order reaction is half completed in 45 min. How long does it need 99.9% of the reaction to be completed?
If 3 g of glucose (Molar mass = 180) is dissolved in 60 g of water at 15 degree, the osmotic pressure of the solution will be
The rise in boiling point of a solution containing 1.8 g of glucose in 100 g of solvent is 0.1 degree C. The molal elevation constant of the liquid is
The primary precursor of photochemical smog that can be metabolised by plants such as Juniparus and Pyrus, is
Which one of the following is a non-narcotic analgesics?
Conveyor belt is manufactured from
Which of the following is added to commercial salt to control hypothyroidism?
Which one of the following is a polysaccharide?
The product formed, when benzene diazonium fluoroborate is heated with aqueous sodium nitrite solution in the presence of copper is
Among methanamine, ethanamine. benzenamine, N-methylaniline and N, N-dimethylaniline, the weakest and the strongest base in aqueous phase, respectively are
Toluene on treatment with chromic oxide in acetic anhydride at 273K to 283K gives
Which one of the following represents valeraldehyde?