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6. An example of a 'linear' shape would be
7. Adding nitric acid, then silver nitrate solution, to a solution of a chloroalkane will create...
- a white ppt
- a cream ppt
- a yellow ppt
8. Alcohol + PCl5 --> chloroalkane + [[HCl]] + POCl3. What is the [[]]?
- green acidic fumes, that turn moist red litmus blue
- steamy acidic fumes, that turn moist blue litmus red
- purple fumes, that are highly toxic
9. Fehlings and Benedicts Solutions test for the presence of...
- an aldehyde functional group and turn from blue to red
- a ketone functional group and turn from red to blue
- a carboxylic acid functional group and turn from green to colourless
10. Why are Na and K COMPOUNDS good reagents?
- Their hydroxides and carbonates are soluble in water. Also, they are colourless therefore do not interfere with colour changes.
- Their hydroxides and carbonates are insoluble, therefore we needn't worry about spillages.
- They produce lots of energy when heated.
11. A tertiary alcohol can simply be shaken with ____ to form a chloroalkane.
12. What are the three forms of carbon structures?
- Carbon, diamond and graphite
- Diamond, Graphite and Fullerenes
- Diamond, Graphite and Buckminsterfullerene
13. Group 2 hydroxide (M(OH)2) + 2HCl ---->
- MCl2 + H2O
- MCl2 + 2H2O
- MCl + H2O
14. I- is the best reducing agent because ....
- it is the largest ion, therefore loses an electron (is oxidised) easiest.
- it is the smallest ion, therefore it gains an electron (is reduced) easiest
- is the largest ion, therefore gains an electron (is reduced) easiest
15. Adding a catalyst....
- offers an alternative mechanism that requires less energy
- increases rate of reaction due to its reactivity
- reverses the reaction
16. In the halides reactions with H2SO4, which can not create a redox reaction?
17. Tollens reagent when warmed tests for...
- an aldehyde functional group and forms a silver precipitate
- a ketone functional group and forms a gold precipitate
- an aldehyde functional group and turns red
18. What is the half equation for Mg when it burns in oxygen?
- Mg + 2e(-) --> Mg(2+)
- Mg --> Mg(2+) + 2e(-)
- 2Mg + O2 ---> 2MgO
19. BeCO3 is less thermally unstable than LiCO3 because ...
- Be is smaller than Li so it distorts more strongly, making it less stable
- Be has a higher charge density, so it distorts the carbonate more, making it less stable
- Be has a lower charge density, so it distorts the carbonate less, making it less stable
20. A shape with all angles of 120 degrees is most likely...
- linear
- trigonal planar
- trigonal pyramidal
