List of top Chemistry Questions

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 n^th 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?

Choose the correct order of acidity of the following phenols:
(I) m-nitrophenol (II) p-cresol (III) p-nitrophenol (IV) phenol

Resorcinol is

'

Calculate the number of o and a bonds in 2-n-propylpent-1-ene.

Which one of the following molecules contains only primary and tertiary carbon atoms?