List of top Chemistry Questions

The solubility product of a sparingly soluble salt AX is \(4.9 \times 10^{-13}\). What is its solubility in \(\text{mol dm}^{-3}\) ?

Four vessels of same volume consist equal masses of four gases \(\text{H}_2\), \(\text{Cl}_2\), \(\text{N}_2\), and \(\text{O}_2\) separately at same temperature. The pressure exerted by the gas is maximum for

Which of the following is the structure of an alcohol with molecular formula \(\text{C}_5\text{H}_{12}\text{O}\)?

Match column I (process) with column II (application)

Identify the product ' B ' in the following reaction sequence.
Alkyl halide \(\xrightarrow{\text{Mg/Dry ether}} \text{A} \xrightarrow{\text{NH}_3} \text{B}\)

Which from following reactions performs zero work?

Find molar mass of nonvolatile solute when 20 g of it dissolved in 200 g water at 300 K. [Relative lowering of vapour pressure = 0.02]

Which of the following is one of the product of ozonolysis?

Which from following polymers is obtained by addition polymerisation method?

Which from following complexes is an example of \(\text{MA}_2\text{BC}\) type of distereoisomers?

The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it in \(\text{mol dm}^{-3}\) ?

Identify the pair of carbohydrates containing galactose as one of constituent in both of them.

Which of the following is primary allylic alcohol?

What are the respective oxidation states of sulphur atoms numbered 1 to 4 in tetrathionate ion as shown below?

Identify the product formed from chlorobenzene on heating with conc. \(\text{HNO}_3\) in presence of conc. \(\text{H}_2\text{SO}_4\).

What are the products formed when \(\text{Li}_2\text{CO}_3\) undergoes decomposition?

Calculate the change in internal energy of the system if \(20\text{ kJ}\) of work is done on the system and it releases \(10\text{ kJ}\) of heat in a particular reaction.

What is the volume occupied by \(0.5\text{ mol}\) of \(\text{CO}_2\) at STP?

Which from following coordinate complexes contains the ligand 'en'?

Which from following is a correct decreasing order of water solubilities of organic compounds?

Identify the product of following reaction.
\(\text{Formaldehyde} + \text{Benzaldehyde} \xrightarrow[\text{H}_3\text{O}^+]{\text{conc. NaOH}} \text{product}\)

Which from following is correct regarding \(t_{1/2}\) of reaction if we double the initial concentration of a reactant in first order reaction?

Which among the following is benzylic halide?

Calculate \(\Delta \text{S}_{\text{total}}\) for a certain reaction at \(298\text{ K}\) if \(\Delta \text{H}^\circ = -208.6\text{ kJ}\) and \(\Delta \text{S}^\circ = -36\text{ J K}^{-1}\)

Which from following solids is isotropic?