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

Match the following

Assertion: A current-carrying wire should be charged.
Reason: The current in a wire is due to the flow of free electrons in a definite direction.

Name the effect of the current responsible for the glow of the bulb in an electrical circuit.

Name a few appliances which work on the basis of the heating effect of current.

CO₂ is along with ______ in the manufacture of fertilizers like urea.

______ is used to prepare soft drinks or aerated drinks.

Write the steps that are followed to write down the chemical formula of a substance.

Derive the chemical formula for calcium chloride.

Each glucose molecule produces ______ ATP.

The lungs are covered by a membrane called ______.

Name the Indians worked at NASA.

Write the names of the following compounds.

1. CO
2. N₂O
3. NO₂
4. PCl₅

Effective microorganism preparation is not used in

The process of actively growing seedling from one place and planting in the main field for further growth is called ______.

______ seeds transfer their unique characteristics to the descents.

Which of the following increases friction?

Name the material which is used to reduce friction.

Give two examples to reduce friction.

The most common industrial application of chemical effects of electric current is ______.

The terminal which is connected to a positive terminal of a battery is called ______.