Question 8
Question 8 of 40
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Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
11. Organic chemistry
11.4. Alkanes

Describe the substitution reaction of alkanes with chlorine as a photochemical reaction, with ultraviolet light providing the activation energy, ( E_a ), and draw the structural or displayed formulae of the products, limited to monosubstitution

10. Chemistry of the envi...
10.3. Air quality and climate

State the symbol equation for photosynthesis, (6CO_2 + 6H_2O ightarrow C_6H_{12}O_6 + 6O_2)

9. Metals
9.4. Reactivity series

Describe the reactions, if any, of: (a) potassium, sodium and calcium with cold water (b) magnesium with steam (c) magnesium, zinc, iron, copper, silver and gold with dilute hydrochloric acid and explain these reactions in terms of the position of the metals in the reactivity series