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

Acids have a sour taste and they are soapy to touch.

Write the important uses of hydrochloric acid and sulphuric acids.

Dead and decaying plants and animals release ______ gas.

______ is an odourless and highly inflammable gas.

Which gas is used as fuels and solvents in the laboratory?

Hydrocarbons are less dense than ______.

Sewage sludge can also be decomposed by microorganisms to produce methane gas along with impurities like carbon dioxide and ______.

______ can also be used as a refrigerant.

______ is used as fuel gas and propellant in aerosol sprays such as deodorants.

Match the following:

Write any 2 properties of hydrocarbons.

The ribosome is an organelle seen in prokaryotes and eukaryotes.

______ is an ornamental crop.

The founder of the Chipko movement was ______.

The variety of life forms is called ______.

Find the odd one out.

Find the odd one out.

Which one of the following statement is wrong?

What is measurement? How is a measurement expressed?

Your friend was absent from school yesterday. You are enquiring about his absence. He told that he had a fever and it was measured to be 100^oC. Is it possible to have a 100^oC fever? If he is wrong, try to make him understand.