Equal masses in grams of $$\mathrm{H}_2, \mathrm{~N}_2, \mathrm{Cl}_2$$, and $$\mathrm{O}_2$$, are enclosed in cylinders separately. If these gases expand isothermally and reversibly by $$10 \mathrm{~dm}^3$$ at $$300 \mathrm{~K}$$, the work done by gas is maximum for

Which of the following compounds is obtained by Rosenmund reduction of benzoyl chloride?

The partial vapour pressure of any volatile component of a solution is equal to the vapour pressure of the pure component multiplied by its mole fraction in the solution is called

Which from following polymers is grouped in the category of elastomers?