CH#01 BASIC CONCEPTS
1. Differentiate atom and molecule?
2. What is atomicity?
3. Define ion,cation,anion with examples.
4. Define molecular ion?How they are generated.*
5. Define isotopes.
6. Define monoisotopics elements give 3 examples.*
7. Why isotopes have same chemical properties.
8. Mass spectrometer?Basic principle of this technique?
9. Differentiate Aston mass spectrograph and Dempster’s mass spectrometer.
10. Give function of magnetic field in mass spectrometer (IMPORTANT).
11. Give other methods of separation of isotopes other than mass spectrometry (last
paragraph mass spectrometry)
12. Differentiate Empirical and Molecular formula?how they are related to each other?
13. How empirical formula can be calculated**?
14. Define gram atom ,gram molecule,gram ion ,gram formula unit*?
15. Define molar volume*?
16. Define stoichiometry?Which laws are obeyed in stoichiometry?
17. Give basic assumptions of stoichiometry?**
18. Define limiting reactant with examples***?
19. How limiting reactant can be identified?
20. Define yield? Differentiate Actual and Theoretical yield?
21. Why actual yield is less than theoretical yield?
22. 23g of Na and 238g of uranium have equal number of atoms in them?(Exercise
Q9a)**
23. Mg is twice heavier than that of carbon atom.(Exercise Q9b)
24. Exercise Q9 part c,d,e also ?
25. Exercise Q25
26. I)law of conservation of mass has to be obeyed during stoichiometric calculations?
27. Ii)Many chemical reaction taking place in our surroundings involve limiting reactants?
28. iii)No individual Neon atom in sample of element has mass of 20.18 amu?*
29. iv)One mole of H2SO4 should completely react with two mole of NaOH How does
Avagadro No. Help to explain it.*
30. V)One mole of H2O has two mole of bond,three mole of atom,ten mole of
electron,twenty eight mole of total fundamental particle present in it*
31. Vi)N2 and CO has same no. Of electron,protons,neutron?*