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View Full Document. e. A sinking fund provision makes a bond more risky to investors at the time of issuance. Feedback The correct answer is: Sinking fund provisions sometimes turn out to adversely affect bondholders, and this is most likely to occur if interest rates decline after the bond has been issued.
The approximate bond angle is about 107 degree. For SF2, the sulphur atom is surrounded by four electron pairs but there are two bonding pairs and two lone pairs. Therefore, the shape of SF2 is ' V ' . The repulsive force between lone pair - lone pair is greater than between the lone pair - bond pair . Hence the bond angle is even smaller than 107. The approximate bond angle is about 104.5 degree. For BCl3, the boron atom is surrounded by three electron pairs and the three electron pairs are all bonding pairs. Therefore the shape of BCl3 is trigonal planar and the bond angle is 120 degree.