Shapes & polarity answers

IB Chemistry: Shapes & polarity answers

Answers to Shapes & polarity questions1. (a) BCl3 contains 3 bonding electron pairs around the central boron atom so the shape will be trigonal planar with angles of 120o.(b) POCl3 contains 4 bonding electron domains so tetrahedral with angles of approximately 109.5o. In fact the Cl-P-Cl bond angle is 103o(see right)(c) PH3 contains 3 bonding & 1 non-bonding electron pairs so trigonal pyramidal with bond angles of approximately...


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