The shape of $AsF_5$ according to VSEPR theory: 
APentagonal Pyramidal
BTrigonal bipyramidal
CSquare Pyramidal
DOctahedral
Answer & Solution
Correct answer: B. Trigonal bipyramidal
In $AsF_5$, arsenic has five bond pairs and no lone pair around the central atom. According to VSEPR theory, an $AX_5$ species adopts a trigonal bipyramidal geometry. Hence option B is correct.
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