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Distinguish between a molecule and a com...

Distinguish between a molecule and a compound.

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FULL MARKS-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS -Additional Questions Solved(2-Mark Questions)
  1. What is meant by Plasma state? Give an example.

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  2. Differentiate an element and an atom

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  3. Distinguish between a molecule and a compound.

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  4. Chlorine has fractional average atomic mass. Justify this statement.

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  5. Define molecular mass of a substance.

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  6. Relative molarcular mass of sulphuric acid is .

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  7. Define the avogadro's number :

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  8. The number of moles of ethane in 60 g is

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  9. Calculate the equivalent mass of Copper. (Atomic mass of copper = 63.5...

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  10. Calculate the equivalent mass of (i) Sulphate ion (ii) Phosphate ion.

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  11. Calculate the equivalent mass of H(2) SO(4) .

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  12. How many moles of hydrogen is required to produce 20 moles of ammonia?

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  13. Calculate the amount of water produced by the combustion of 32 g of me...

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  14. How much volume of Carbon dioxide is produced when 25 g of calcium car...

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  15. How much volume of chlorine is required to prepare 89.6 L of HCI gas a...

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  16. Define limiting reagent .

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  17. On the formation of SF(6) by the direct combination of S and F(2) whi...

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  18. Mention any 4 redox reaction that takes place in our daily life.

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  19. Calculate the oxidation number of underlined elements in the following...

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  20. If ten volumes of dihydrogen gases react with five volumes of dioxygen...

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