1(f)
(i) Draw the structural formula for each of the following:
- 2, 3 – dimethyl butane
- Diethyl ether
- Propanoic acid
(ii) From the list of terms given, choose the most appropriate term to match the given description.
(calcination, roasting, pulverisation, smelting)
- (a)Crushing of the ore into a fine powder.
- (b)Heating of the ore in the absence of air to a high temperature.
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1. 2, 3 – dimethyl butane :
2. Diethyl ether :
3. Propanoic acid :
(ii) The matching terms are:
- Crushing of the ore into a fine powder — Pulverisation
- Heating of the ore in the absence of air to a high temperature — Calcination