Friday, 7 August 2015

9701 MCQ Solution 71

Question 71: [Physical > Chemical Bonding]


Silicon tetrachloride, SiCl4, is a liquid of low boiling point. In the presence of water it decomposes to form silicon(IV) oxide and hydrogen chloride. What types of bonding occur in SiCl4(I)?
1 co–ordinate bonding 2 covalent bonding 3 van der Waals forces

Reference: Past Exam Paper -June 2003 Paper 1 Q31

Solution 71:

Answer: C.

Silicon tetrachloride is a molecule with covalent bonds therefore option 2 is true.
There are no coordiante bonds within silicon tetrachloride however as it has a simple molecular structure, VDW forces are present between molecules therefore option 3 is true.

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