SSLC (English Medium) कक्षा १० - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Solar energy is a renewable energy. How?

In the aluminothermic process, the role of Al is _____.

Along with cryolite and alumina, another substance is added to the electrolyte mixture. Name the substance and give one reason for the addition.

Metal A belongs to period 3 and group 13. A in red hot condition reacts with steam to form B. A with strong alkali forms C. Find A, B, and C with reactions.

Name the acid that renders aluminum passive. Why?

Which of the following statements are correct about a chemical equilibrium?

(i) It is dynamic in nature

(ii) The rate of the forward and backward reactions are equal at equilibrium

(iii) Irreversible reactions do not attain chemical equilibrium

(iv) The concentration of reactants and products may be different.

The equilibrium attained during the melting of ice is known as ______

At the equilibrium of a reversible reaction, the concentration of the reactants and the products will be equal.

What is chemical equilibrium? What are its characteristics?

Ethanoic acid turns ______ litmus to ______

Give the balanced chemical equation of the following reaction:

Neutralization of NaOH with ethanoic acid.

Give the balanced chemical equation of the following reaction:

Evolution of carbon dioxide by the action of ethanoic acid with NaHCO₃.

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.

What organs are attached to the two bronchi?

Why are the rings of cartilages found in the trachea of rabbits?

Give the balanced chemical equation of the following reaction:

Neutralization of NaOH with ethanoic acid.

Give the balanced chemical equation of the following reaction:

Neutralization of NaOH with ethanoic acid.