Question 40
Question 40 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
17. Carbonyl compounds
17.1. Aldehydes and ketones

deduce the nature (aldehyde or ketone) of an unknown carbonyl compound from the results of simple tests (Fehling’s and Tollens’ reagents; ease of oxidation)

22. Analytical techniques
22.2. Mass spectrometry

deduce the molecular mass of an organic molecule from the molecular ion peak in a mass spectrum

2. Atoms, molecules and s...
2.1. Relative masses of atoms and m...

define the unified atomic mass unit as one twelfth of the mass of a carbon-12 atom