List of top Chemistry Questions

Wurtz's reaction involves'the reduction of alkyl halide with:

Which of the following statement is wrong?

$ Cis-trans $ isomers generally:

The two optical isomers given below, namely, :

The coagulating power of an electrolyte for arsenious sulphide decreases in the order:

Radioactive decay series of uranium is denoted as:

In one of the following reactions $ \text{HN}{{\text{O}}_{\text{3}}} $ does not behave as an oxidizing agent. Identify it:

Conversion of benzaldehyde to 3-phenyl-prop-2-en-1-oic acid is:

Which ore contains both iron and copper?

Which of the following isomers of phosphorus is thermodynamically most stable?

Which gas is evolved when $PbO_2$ is treated with concentrated $HNO_3$?

A pale blue liquid obtained by equimolar mixture of two gases at $- 30^\circ\, C$ is

Lyophilic sols are

Which of the following $fcc$ structure contains cations in alternate tetrahedral voids?

Which of the following will not be oxidised by $O_3$?

A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of metal nitrate is

Which of the following is wrong statement?

Which of the following compound gives iodoform test?

Substance having ester linkage is:

Graphite is soft while diamond is hard because:

$H$-bond is strongest in:

Ratio of molecular weights of $A$ and $B$ is $ \frac{4}{25} $ then ratio of rates of diffusion will be:

Which has minimum solubility?

$CH _{3} CH _{2} C \equiv CH {->[{ R }]} $ butanone $-2 . R$ is

Phenol reacts with chloroform in presence of: