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

Lead nitrate produces brown gas on heating.

Photochemistry deals with chemical reactions involving light.

Name the nitrate which does not produce brown gas on heating?

What will happen if oxygen has the capacity to burn itself?

The boiling point of water increases with ______ in pressure.

The freezing point of water ______ with an increase in pressure.

Pure water boils at ______ °C at one atmospheric pressure.

Freezing of water will cause an ______ is the volume.

______ has the highest latent heat of fusion.

One gram of water requires ______ of heat to raise its temperature by l°C.

Water is circulated around the car engine using the ______ pump and the heat is absorbed.

What is the taste of distilled water & boiled water?

What are the physical properties of pure water?

The common salt is ______.

Match the following:

Assertion: A salt is produced when an acid is neutralized by a base.
Reason: A salt can be acidic, basic, or neutral.

Write the chemical equation for the reaction of bases with metal oxides.

When lignite becomes darker and harder over time ______ coal is formed.

Which one among the following is an extremely strong but lightweight material is used in mountain bikes and tennis rackets?

______ coal is black and dull coal.