1. Forces that arise as a result of the mobility of electrons include:

- D. Van der Waals forces

2. Cellulose and starch are classified as:
- D. Carbohydrates

3. Zinc sulphide is used in:
- A. Germicide

4. The radioisotope used in archaeology is:
- C. Carbon-14

5. The hydrogenation of benzene to cyclohexane is called:
- D. Aromatization

6. BaSO4 is:
- B. Insoluble salt

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7. CxH12.... what is x in the alkyne of this compound.
- B. 6

8. Heating of sodalime with CH3CH2CH2COONa produces:
- C. Pentane

9. The sulphide used in coating electric fluorescent tubes is:
- C. Zinc sulphide

10. Oxidation of a secondary alkanol will give:
- A. Propanoic acid

11. If the pressure is decreased in the reaction PCl5(g) -> PCl3(g) + Cl2(g), the yield will increase for:
- B. PCl3

12. In the presence of water, anhydrous cobalt(II) chloride turns:
- C. Blue to pink

13. The Van der Waals' forces are dominant intermolecular forces in:
- A. Ammonium chloride

14. The method suitable for separating suspended particles in a liquid is:
- C. Centrifugation

15. Silica gel when exposed to air turns liquid. What kind of substance is it?
- A. Deliquescent

16. The laws that form the general gas equation are:
- A. Boyle's and Charles law

17. The IUPAC name for the compound HOCH2CH2CH2OH is:
- B. Pentan-1,2-diol

18. The highest-octane number is typically found in:
- B. Branched chain aliphatic compounds

19. The gas that can best be collected by downward displacement of air is:
- C. Chlorine

20. The rate of a chemical reaction is not affected by:
- A. Color

21. The true statement about the electrochemical series is:
- A. Electropositivity of metals increases down the series

22. Common salt NaCl purity can be determined by:
- B. Melting point

23. An isotope with an atomic number of 15 and a mass number of 31 contains:
- B. 15 protons

24. The purest form of natural water is:
- A. Rainwater