Question

Matching: Give one example from the main-group chemistry that illustrates each of the following descriptors:

______________ Covalent Network Solid                                              A. Chlorine gas

______________ Disproportionation reaction                                         B. silicon

______________Paramagnetic oxide                                                     C. nitric acid

______________Polar molecule that violates the octet rule                   D. nitrogen dioxide

______________Lewis acid                                                                     E. nitrogen monoxide

_____________Amphoteric oxide                                                            F. diamond

_____________Semiconductor                                                               G. graphite, fullerene

_____________Strong oxidizing agent                                                   H. Boron triblouride

____________Allotropes                                                                         I. water

____________Universal polar solvent                                                     J. Aluminum oxide

Answer 1

Covalent Network Solid --> diamond will form networks of covalents bonds

Disproportionation reaction --> Nitrogen dioxide

Paramagnetic oxide --> Aluminium oxide

Polar molecule that violates the octet rule --> Boron trifluoride, BF3, B contians only 6 bonded species, insted of 8

Lewis acid --> Boron trifluoride, BF3, acts as an acid

Amphoteric oxide --> can act as a base/acid, this is Aluminum oxide

Semiconductor --> silicon is a metalloid, therefore capable of being semiconductor

Strong oxidizing agent --> Chlorine gas, which reacts readily with any species

Allotropes --> graphite, fullerene are good exmaples

Universal polar solvent --> water is polar, and it is widely used