A salt prepared by displacement reaction is _____. (ferric chloride, ferrous chloride, silver chloride)

State one advantage of roadways.

There are 25 discs numbered 1 to 25. They are put in a closed box and shaken thoroughly. A disc is drawn at random from the box. Find the probability that the number on the disc is:

1. an odd number
2. divisible
...

State any two objectives of the Muslim League.

The inert electrode used in the electrolysis of acidified water is:

1. Nickel
2. Platinum
3. Copper
4. Silver

Mention two causes of soil erosion in India.

Write any one circumstance when the President can declare a National Emergency.

The particles present in strong electrolytes are:

1. only molecules
2. mainly ions                                                                                                                                                                         
3. ions and molecules
4. only atoms.

Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of:

1. Acidified copper sulphate solution with copper
...

1. In a cathode ray tube what is the function of anode?
2. State the energy conversion taking place in a cathode ray tube.
3. Write one use of cathode ray tube

A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection.

Name the colour code of the wire which is connected to the metallic body of an appliance.

1. State two differences between “Heat Capacity” and “Specific Heat Capacity”.
2. Give a mathematical relation between Heat Capacity and Specific Heat Capacity.

Copy and complete the following paragraph using the options given in brackets:

Alkenes are a homologous series of (i) _____ (saturated / unsaturated) hydrocarbons characterized by the general...

The necessity to maintain International peace led to the establishment of the United Nations Organisation. With reference to the statement, answer the following: Write any three functions of UNESCO that...

The data on the number of patients attending a hospital in a month are given below. Find the average (mean) number of patients attending the hospital in a month by using the shortcut method.

Take the assumed...