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

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 ______

100% pure ethanol is called ______.

How is ethanoic acid prepared from ethanol? Give the chemical equation.

How is ethanol manufactured from sugarcane?

Give the balanced chemical equation of the following reaction:

Oxidation of ethanol by acidified potassium dichromate.

Write the chemical equation for the following:

Oxidation of ethanol

An organic compound ‘A’ is widely used as a preservative and has the molecular formula C₂H₄O₂. This compound reacts with ethanol to form a sweet-smelling compound ‘B’.

Write the chemical equation for its reaction with ethanol to form compound ‘B’.

An organic compound ‘A’ is widely used as a preservative and has the molecular formula C₂H₄O₂. This compound reacts with ethanol to form a sweet-smelling compound ‘B’.

Name the process.

Write the reaction for photosynthesis?

How does the light-dependent reaction differ from the light-independent reaction? What are the end product and reactants in each? Where does each reaction occur within the chloroplast?

The reactions of photosynthesis make up a biochemical pathway.

What is the end product of light and dark reactions of photosynthesis?

The reactions of photosynthesis make up a biochemical pathway.

Explain how the biochemical pathway of photosynthesis recycles many of its own reactions and identify the recycled reactants.

Write the dental formula of rabbits.

Shylesh has some pet animals at his home. He has few rabbits too, one day while feeding them he observed something different with the teeth. He asked his grandfather, why is it so? What would have been the explanation of his grandfather?

______ maintains the constant pressure inside the cranium.

Understand the assertion statement. Justify the reason given and choose the correct choice.

• Assertion: Cerebrospinal fluid is present throughout the central nervous system.
• Reason: Cerebrospinal fluid has no such functions.

Cerebrospinal fluid provides nutrition to the brain.

Use the analogy to fill in the blank.

Nuclear Fusion: Extreme temperature, Nuclear Fission: ___________