Question 21
Question 21 of 40
Question image for Q21
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
13. An introduction to AS...
13.1. Formulas, functional groups a...

deduce the molecular and/or empirical formula of a compound, given its structural, displayed or skeletal formula

2. Atoms, molecules and s...
2.3. Formulas

define and use the terms empirical and molecular formula