Question 32
Question 32 of 40
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Periodic Table
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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...
13.3. Shapes of organic molecules;...

understand and use the term planar when describing the arrangement of atoms in organic molecules, for example ethene

3. Chemical bonding
3.5. Shapes of molecules

state and explain the shapes of, and bond angles in, molecules by using VSEPR theory, including as simple examples: • BF\(_3\) (trigonal planar, 120°) • CO\(_2\) (linear, 180°) • CH\(_4\) (tetrahedral, 109.5°) • NH\(_3\) (pyramidal, 107°) • H\(_2\)O (non-linear, 104.5°) • SF\(_6\) (octahedral, 90°) • PF\(_5\) (trigonal bipyramidal, 120° and 90°)