Question
This element is mainly found in its red and white allotropes. For 10 points each:
[10e] Name this element with symbol P. Its white allotrope is used in matches due to its extreme flammability and reactivity, while its red allotrope is used as a flame retardant.
ANSWER: phosphorus
[10m] The most stable allotrope of phosphorus, its black allotrope, has very similar properties to this allotrope of a different element. This allotrope consists of hexagonal layers that can be peeled away individually with tape.
ANSWER: graphite
[10h] A phosphonium ylide is used to convert ketones and aldehydes into alkenes in this reaction. The Horner-Wadsworth-Emmons modification to this reaction replaces the ylide with a phosphonate ester.
ANSWER: Wittig reaction
<Science - Chemistry>
Summary
| 2023 ACF Fall (Rutgers) | 10/14/2023 | Y | 4 | 15.00 | 100% | 50% | 0% |
Data
| Fordham | Maryland | 10 | 0 | 0 | 10 |
| Lehigh | Rowan | 10 | 10 | 0 | 20 |
| Columbia B | Penn | 10 | 10 | 0 | 20 |
| Princeton | Columbia A | 10 | 0 | 0 | 10 |