SSLC (English Medium) Class 8 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Solar energy is a non depleting energy. Justify.

______ was the first man landing mission to go to the Moon.

What are the most popular missions of NASA?

Differentiate inorganic compounds and organic compounds.

Tabulate some important compounds that exist in a gaseous state.

Write a note on the classification of compounds.

Lighter metals like Na and K combine with CO₂ to form corresponding ______.

What do you mean by aerated water?

Explain the physical properties of carbon dioxide.

During electrolysis, hydrogen and oxygen are obtained in the ratio of 1: 2.

What is dry ice? What are its uses?

It is said that sleeping beneath the tree during the night is not good for health. What is the reason?

Find the valency of the element which is underlined in the following formula.

1. NaCl
2. CO₂
3. Al (PO₄)
4. Ba (NO₃)₂
5. CaCl₂

Write the chemical formula for the following compounds

1. Aluminium sulphate
2. Silver nitrate
3. Magnesium oxide
4. Barium chloride

Define - Metabolism.

List out the different types of metabolism with an example.

What is crop rotation?

______ wire is used in the filament of the bulbs.

Copper wire offers very little ______ and does not get heated up quickly.

Fuse is a strip of alloy wire which is made up of lead and tin with a very low ______.