Question

Group-C
3. Answer the following questions (alternatives are to be noted) :
2 x 9

3.1 What is the concept of sustainable development ?
.2 A sample of oxygen has a volumeof 880 mL and a pressure of 740 torr. What additional
pressure is required to reduce the volume to 440 mL.

OR. A bottle of volume 9L contains a gas at 10 atm pressure. How many bottles each of 1L
capacity can be filled with the gas at 2 atm pressure, at constant temperature.

3.3 How does the ray passes through the prism in the minimum deviation position ? 2
OR. On which factor(s) the angle of diviation(s) depends for a prism?
2
3.4 How can EER opf an AC machine be improved?
2
3.5 Two elements X and Y have atomic numbers 12 and 16 respectively. Do they belong to
the same period?
2
OR, Valency of group 1 as well as 17 with respect to hydrogen is one. Explain.
2
3.6 What type of valency is shown in Li,O? Draw the relevant electron dot diagram. 2
3.7 What is octet rule ?
2
3.8 Covalency possesses directional properties but electro-valency has no such characteristics.
Why?
2
OR, Water is generally a good solvent for ionic compounds, why?
2
3.9 Explain why blocks of magnesium are often strapped to the steel pulls of ocean going
ships.
2
OR, What are the application of electrolysis?
2
Go​

Answer 1

Answer:

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Explanation:

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