ICSE ICSE Class 7 - CISCE Question Bank Solutions

What is meant by stationary phase and mobile phase in chromatography?

Select the correct alternative from the choices given for the following statement:

In chromatography the filter paper is 

Name the different types of chromatographic techniques.

State the correct technique for the separation of the following mixture.

solid constituents in a liquid constituent by adsorption.

Dyes of an ink

• Give the principle involved in the separation of the mixture
• Give the technique of separation of the mixture.

Give a reason for the following statement:

In chromatography the absorbent medium e.g. What man filter paper is known as the stationary phase.

Tick the most appropriate answer.

 Loading is a process in which

If maps were only black and white, will they be difficult to read?

Using colours and symbols is an intelligent way of providing information. It helps cartographers to make beautiful and easy-to-read maps.
Can you think of a situation where you can use this method in your day-to-day life?

 Fill in the blank
The colour ____________ is used to show barren land on topographical sheets.

 Fill in the blank
The colour yellow is used to show ______________ on topographical sheets.

Write True or False. Correct the false statement.
A metalled road is shown by two blue lines

What are topographical maps?

Explain why colours are used in topographical maps.

Name the features shown in blue, green, and brown colours on a map.

What do you understand by settlements?

Distinguish between a temporary settlement and a permanent settlement.

How can the occupation of people be inferred directly from a topographical sheet?

How can topographical maps help us to know about the transport and communication of an area?

Draw a sketch map of your neighborhood using different colours for different areas, for example, red for residential areas, green for parks and playgrounds, and yellow for commercial areas. Use symbols to mark out roads and special places like temples, post offices, old monuments, or railway stations. Make a proper key for it.