Question 36
Question 36 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
12. Experimental techniqu...
12.5. Identification of ions and ga...

Describe tests using aqueous sodium hydroxide and aqueous ammonia to identify the aqueous cations: (a) aluminium, Al^3+ (b) ammonium, NH4^+ (c) calcium, Ca^2+ (d) chromium(III), Cr^3+ (e) copper(II), Cu^2+ (f) iron(II), Fe^2+ (g) iron(III), Fe^3+ (h) zinc, Zn^2+

11. Organic chemistry
11.7. Carboxylic acids

Describe the formation of ethanoic acid by the oxidation of ethanol: (a) with acidified aqueous potassium manganate(VII) (b) by bacterial oxidation during vinegar production

11. Organic chemistry
11.6. Alcohols

State the uses of ethanol as: (a) a solvent (b) a fuel