Anhydrous iron(III) chloride is prepared by:

1. direct combination
2. simple displacement
3. decomposition
4. neutralization

Why is ammonia gas not collected over water

Draw a graph between displacement from mean position and time for a body executing free vibration in a vacuum.

The individual flattened stacks of membranous structures inside the chloroplasts are known as:

1. Grana
2. Stroma
3. Thylakoids
4. Cristae

Education is very important for population control.

Give biological explanation.

Briefly explain: The trees in the Tropical Desert Forest have stunted growth.

Define heat capacity and state its SI unit

State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions:

1. copper sulphate solution
2. zinc sulphate solution.

What is meant by Collective Responsibility of the Cabinet?

Mention any two functions of UNESCO in the field of Education

The necessity to maintain International peace led to the establishment of the United Nations Organisation. With reference to the statement, answer the following: State the Composition of the...

Give a reason: Plastic and polythene products must be banned

Some women have facial hair like beard and moustache.

Give biological reason

State the dependence of angle of deviation:

1. On the refractive index of the material of the prism.
2. On the wavelength of light.

The process by which sulphide ore is concentrated.

Calculate:

(i) The amount of each reactant required to produce 750 ml of carbon dioxide, when two volumes of carbon monoxide combine with one volume of oxygen to produce two volumes of carbon...