List of top Chemistry Questions

Carborundum is the name of

Which of the following is present in tenon?

The chemical which is known as the king of chemicals is

Soda ash is

Structurally a biodegradable detergent should contain a

Solubility product of silver bromide is $5.0 \times 10^{-13}$. The quantity of potassium bromide (molar mass taken as 120 g of $mol^{-1}$) to be added to 1 litre of 0.05 M solution of silver nitrate to start the precipitation of AgBr is

Select the incorrect statement.

Sea water is converted into fresh water based on the phenomenon of

Pure benzene freezes at $5.3^{\circ} C$. A solution of $0.223 \,g$ of phenylacetic acid $(C_6H_5CH_2COOH)$ in $4.4\, g$ of benzene $(h_f = 5.12\,kg\,mol^{-1})$ freezes at $4.47^{\circ} C$. From this observation, one can conclude that

Primary, secondary and tertiary amines can be distinguished by

Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point $A$ is $\rho_{0}$. Density at point $B$ will be

Permanent hardness of water can be removed by adding

Percentage of free space in cubic close packed structure and in body centred packed structure are respectively

Passing $H _{2} S$ gas through nitric acid produces

Oxidation number of $N$ is $ HN{{O}_{3}} $ is

Oxalic acid on heating with conc. $ H_2SO_4$ gives

Non-zero dipole moment is shown by

Nitrogenous base that found in $RNA$ but absent in $DNA$ is

Methane can be converted to ethane by the reaction

Least volatile hydrogen halide is

In Tyndall effect the colloidally suspended particles

In the complex ion $\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$, the $NH _{3}$ molecules are linked to the central metal ion by

In tetragonal crystal system, which of following is not true?

In Lucas test an alcohol react immediately and gives insoluble chloride. The alcohol is

How many ions are produced from $ [Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}} $ in solution?