SSLC (English Medium) Class 10 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Why should the light-dependent reaction occur before the light-independent reaction?

Where do the light-dependent reaction and the Calvin cycle occur in the chloroplast?

Mammals are ______ animals.

The animals which give birth to young ones are ______

Why are the teeth of rabbits called heterodont?

Define the moment of a couple.

Differentiate convex lens and concave lens.

A piece of wire of resistance 10 ohm is drawn out so that its length is increased to three times its original length. Calculate the new resistance.

Coal, petroleum and natural gas are called ______ fuels.

______ is the most commonly used fuel for the production of electricity.

Which of the following is/are a fossil fuel?

1. Tar
2. Coal
3. Petroleum

Why fossil fuels are to be conserved?

Find the percentage of nitrogen in ammonia.

All ores are minerals, but all minerals cannot be called ores.

Periodical removal of one of the products of a reversible reaction increases the yield.

Differentiate reversible and irreversible reactions.

C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O is a ______

Rectified spirit is an aqueous solution that contains about ______ of ethanol.

Which of the following are used as anesthetics?

Dehydration of ethanol by conc. Sulphuric acid forms ______