The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is

If $(2,-1,3)$ is the foot of the perpendicular drawn from the origin to the plane,then the equation of the plane is

All of the following substances react with water. Which pair among them will produce the same gaseous product upon reaction with water?

The coefficient of $x^5$ in the expansion of $(1+x^2)^5(1+x)^4$ is:

The type of bond connecting two nucleotides is

Two insulated metallic spheres of $3\,\mu F$ and $5\,\mu F$ capacitances are charged to $300\,V$ and $500\,V$ respectively. The energy loss,when they are connected by a wire is (in $,J$)