Question 35
Question 35 of 40
Question image for Q35
Periodic Table
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
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...
12.4. Separation and purification

Describe and explain methods of separation and purification using: (a) a suitable solvent (b) filtration (c) crystallisation (d) simple distillation (e) fractional distillation

9. Metals
9.6. Extraction of metals

Describe the extraction of iron from hematite in the blast furnace, limited to: (a) the burning of carbon (coke) to provide heat and produce carbon dioxide (b) the reduction of carbon dioxide to carbon monoxide (c) the reduction of iron(III) oxide by carbon monoxide (d) the thermal decomposition of calcium carbonate/limestone to produce calcium oxide (e) the formation of slag Symbol equations are not required

11. Organic chemistry
11.3. Fuels

Describe the separation of petroleum into useful fractions by fractional distillation