Group 14 questions
Download as PPTX, PDF0 likes346 views
This document contains questions related to group 14 elements and their properties. The questions cover topics such as why the diamond structure is found in carbon and other group 14 elements, which group 14 compound has the lowest boiling point, what type of gloves should be used to handle organotin compounds, and why the stability of MCl4 decreases down group 14. The questions are provided under a CC-BY license to facilitate peer instruction.
Group 14 questions
- 1. The Group 14 flip
- 2. Why share questions? • There are many excellent open educational resources on the internet. • These include many videos of more-or-less traditional university lecturing. • These questions have been provided on a CC-BY basis to facilitate peer instruction.
- 3. Why is the diamond structure found in multiple group 14 element allotropes but multiply bonded structures are exclusive to carbon? A. Lone pair repulsion disfavours multiple bonds and larger atoms disfavour pi bonding B. Lone pair repulsion disfavours multiple bonds and the diamond structure results from four equivalent covalent bonds C. The inert pair effect means that two electrons do not engage in bonding and the diamond structure results from two equivalent covalent bonds D. Larger atoms disfavour pi bonding and the diamond structure results from four equivalent covalent bonds Lone pairrepulsion disfa... Lone pairrepulsion disfa... Theinertpaireffectm ea.. Largeratom sdisfavourp... 4 3 4 3
- 4. Which has the lowest boiling point? A. α-quartz B. silicon C. silicon tetrachloride D. blue asbestos
- 5. What sort of gloves do you use to handle organotin compounds? A. None B. Disposable nitrile C. Double-dip natural rubber (Marigolds) D. Woollen NoneDisposable nitrile Double-dip naturalrubbe... W oollen 0 000
- 6. Why does the stability of MCl4 decrease as you go down group 14? A. 3rd ionisation energy increases B. 3rd ionisation energy decreases C. Increased size of p orbitals D. Decreased size of p orbitals 3rd ionisation energyinc... 3rd ionisation energyde... Increased size ofp orbitals Decreased sizeofp orbitals 0% 0%0%0%