The correct set of the products obtained in the following reactions is

a) 

b) 

c) 

d) 

A sphere of radius r is charged to a potential V. The outward pull per unit area of its surface is given by

Aniline is not the major product in one of the following reactions. Identify that reaction.

The reaction, is called:

If area of each plate is A and the successive separations are d, 2d and 3d then the equivalent capacitance across A and B is

Two plates, each of area A, are placed parallel to each other at a distance d. One plate is connected to a battery of e.m.f. E and its negative is earthed. The other plate is also earthed.

The charge drawn by plate is

Two identical capacitors have the same capacitance C. One of them is charged to potential  and the other to . The negative ends of the capacitors are connected together. When the positive ends are also connected, the decrease in energy of the system is

A capacitor of capacitance  charged to a potential  and then isolated. A small capacitor C is then charged from  , discharged and charged again; the process being repeated n times. Due to this, potential of the larger capacitor us decreased to V . The value of C is

Nitric oxide is prepared by the action of    on

For chrome plating the electrolytic bath contains:

The metal which does not form ammonium nitrate by reaction with dilute nitric acid is

Ammonia reacts with excess of chlorine to form:

Oxide of nitrogen used as catalyst in lead chamber process for the manufacture of   is:

Reaction of PCl₃ and PhMgBr would give