List of top Chemistry Questions

Saturated solution of $KNO_3$ is used to make -salt-bridge- because

The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order

The quantum numbers $+\frac{1}{2}$ and $-\frac{1}{2}$ for the electron spin represent

Which carbide gives methane on hydrolysis?

When acetone reacts with bleaching powder, the compound formed is:

What is obtained by the dry distillation of calcium formate?

The oxidation of toluene to benzaldehyde, in presence of chromyi chloride, is called:

The IUPAC name of gammexane is:

$ HCl $ behaves as......in the reaction: $ HCl+HF\xrightarrow{{}}H_{2}^{+}Cl+{{F}^{-}} $

Diborane reacts with water to form:

Conjugated double bonds are present of these in:

An ore of potassium is:

When a catalyst is added to a system, the:

Which property is different for neutral atoms of the two isotopes of the same element?

A and B are two identical vessels. A contains 15 g of ethane at 298 K and 1 atm. The vessel B contains 75 g gas $ {{X}_{2}} $ at the same temperature and pressure. The vapour density of $ {{X}_{2}} $ is:

A mixture of benzene and aniline can be separated by:

What is the oxidation state of Cr in $ Cr{{O}_{5}} $ ?

Then A is:

Which of the following element exhibit maximum oxidation state:

Oxidation numbers of \(A,B\) and \(C\) are \(+2,+5\) and \(– 2\) respectively possible formula of compound is:

R and S enantiomer are differ in:

In the separation of $Cu^{2+}$ and $Cd^{2+}$ of Ilnd group in qualitative analysis of cations, tetrammine copper (II) sulphate and tetrammine cadmium (II) sulphate react with KCN to form the corresponding cyano complexes, which one of the following pairs of the complexes and their relative stability enables the separation of $Cu^{2+} $ and $Cd^{2+}$?

Correct order of stability is :

Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?

2-butene shows geometrical isomerism due to :