List of top Chemistry Questions

Which of the following is the most stable alkene?

Which one of the following is used to make ??on-stick??cookware?

Which one of the following shows maximum paramagnetic character?

The reaction, $ {Benzene + methyl \,halide ->[Anhy.AlCl_3]Toluene,}$ is known as

The product obtained when acetic acid is treated with phosphorus trichloride, is

The boiling point of water $\left(100^{\circ} C \right)$ becomes $100.52^{\circ} C$, if $3$ grams of a non-volatile solute is dissolved in $200 \,ml$ of water. The moleular weight of solute is (if $K _{ b }$ for water is $=0.6\, K / m$ )

Schottky defect in a crystal is observed when

In an endothermic reaction, the value of change in enthalpy $(\Delta H)$ is

Hess??law is applicable for the determination of heat of

In the periodic table, the element with atomic number 16 will be placed in the group

Oxidation state of chlorine in hypochlorous acid is

The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is

Among the elements given below, the one with highest electropositivity is

Collective name given to the elements with outer shell configuration $ns^2np^6$ is

Directed bond in water form an angle of

In the presence of acid,the hydrolysis of methyl cyanide gives

Which of the following compound gives dye test ?

Which reaction is suitable for preparing $\alpha$-Chloroacetic acid ?

Baeyer?? reagent is used in the laboratory for

Both chlorine and sulphur dioxide act as bleaching agents. Chlorine bleaches by vigorous oxidation, while sulphur dioxide bleaches by mild reduction.

Alkali metals impart colour to the flame. Their ionisation energies are low.

The functional group which is found in amino acid is

Which one of the following ionic species will impart colour to an aqueous solution ?

Iodoform test is not given by

The most reactive compound, for the electrophilic nitration, is