MCQ | Answer | Area of Chemistry |
1. | C | [Electron Arrangement] |
2. | C | [Gas Tests – Oxygen] |
3. | D | [Diatomic elements] |
4. | B | [Atomic Structure/ Nuclide notation] |
5. | D | [Chemical Formula – Prefixes] |
6. | A | [Electron Arrangement/ Properties of Elements/ Groups in Periodic Table] |
7. | A | [Substances] |
8. | A | [Gas Tests -Hydrogen] |
9. | |
a) | molecules composed of only two atoms (covalently bonded) |
b) | hydrogen/ nitrogen/ oxygen/ fluorine/ chlorine/ bromine/ iodine |
10. |
11. | O2-, Na+ | ||
12. | |||
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HIGH | ||
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LOW | ||
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HIGH | ||
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LOW |
13. | a) | N2 | b) | Al | c) | H2 |
d) | Cl2 | e) | Br2 | f) | H2O | |
g) | CCl4 | h) | NF3 | i) | SiBr4 | |
j) | SiO2 | e) | SiO4 | f) | N2O4 |