Question 11
Question 11 of 40
Question image for Q11
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
11.3. Fuels

State that hydrocarbons are compounds that contain hydrogen and carbon only

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

Describe how the greenhouse gases carbon dioxide and methane cause global warming, limited to: (a) the absorption, reflection and emission of thermal energy (b) reducing thermal energy loss to space