Question

1. How does sodium react with water? Give the equation?

2. Why acetylenic hydrogen is acidic in nature? What is the cause for temporary hardness of water mention method to remove the temporary hardness of water one Give two differences between hard water and soft water.

5. What is Pyrolysis? Give an example.

II] Three Marks Questions:

1. What is meant by "100 volume of hydrogen peroxide? 2. What are hydrides? Give their classification?

3. Explain the reducing property of hydrogen peroxide with iodine
4. Explain the preparation of H;0, from BaO, write the composition of water gas? What are isotopes? Write the isotopes of one is radioactive isotope?​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Acids are those chemical which produce hydrogen ions in its aqueous solution for example: Citric acid, sulphuric acid, hydrochloric acid etc.

Properties of Acids are

(i) It has sour in taste.

(ii) It turns blue litmus into red.

(iii) It turns methyl orange colour into red.

(iv) Acids has corrosive in nature.