Let $A$ and $B$ be two sets. Then $(A \cup B)' \cup (A' \cap B)$ is equal to:

In the following diagram,the charge and potential difference across $8\, \mu F$ capacitance will be nearly

The ratio of rates of diffusion of gases $X$ and $Y$ is $1:5$ and that of $Y$ and $Z$ is $1:6$. The ratio of rates of diffusion of $Z$ and $X$ is

The points on the curve $9y^{2} = x^{3}$ where the normal to the curve makes equal intercepts with the axes are

Six moles of an ideal gas perform a cycle shown in the figure. If the temperatures are $T_A = 600\,K, T_B = 800\,K, T_C = 2200\,K$ and $T_D = 1200\,K,$ the work done per cycle is...... $kJ$

The structure of the compound formed when nitrobenzene is reduced by lithium aluminium hydride $(LiAlH_4)$ is