DMSO - 2025 ACF Winter - Buzzpoints App

Question

Swern oxidation begins by activating this molecule. For 10 points each:

[10m] Name this solvent, the most commercially used sulfoxide. When absorbed through the skin, this solvent causes a garlic taste.

ANSWER: DMSO [or dimethyl sulfoxide]

[10e] Replacing the sulfur atom of DMSO with a carbon atom yields the simplest member of this functional group, acetone. These molecules have a non-terminal carbon–oxygen double bond.

ANSWER: ketones

[10h] Two answers required. Both acetone and DMSO are solvents with these two properties. These solvents do not hydrogen-bond and are used in SN2 reactions.

ANSWER: polar AND aprotic [accept polar aprotic solvents]

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Summary


California	Main	Y	4	27.50	100%	100%	75%
Canada	Main	Y	6	21.67	83%	67%	67%
Florida	Main	Y	12	15.00	92%	42%	17%
Great Lakes	Main	Y	3	16.67	100%	33%	33%
Overflow	Main	Y	1	30.00	100%	100%	100%
Pacific Northwest	Main	Y	10	16.00	90%	50%	20%
South Central	Main	Y	5	14.00	100%	40%	0%
UK	Main	Y	4	15.00	75%	50%	25%
Upper Mid-Atlantic	Main	Y	8	15.00	63%	50%	38%
Upstate NY	Main	Y	8	18.75	88%	50%	50%
2025 ACF Nationals	2025-08-09	Y	9	14.44	89%	33%	22%

Data


Berkeley E	Berkeley A	10	10	10	30
Berkeley B	Stanford A	10	10	0	20
Berkeley C	Stanford B	10	10	10	30
Berkeley D	Stanford C	10	10	10	30
Claremont Scripps	UCI	10	10	10	30
USC	UCLA B	10	10	10	30
UCLA C	UCSB	10	10	10	30
UCLA A	UCSD Two Running Violet V Forms	10	10	10	30
UCSD Vices and Virtues	UCLA D	0	0	0	0
Claremont Pitzer	UCSD What Hath God Wrought	0	10	0	10
Guelph B	Toronto F	0	10	0	10
Toronto H	McGill A	0	10	0	10
Carleton	McMaster A	0	10	0	10
McMaster B	Guelph A	0	10	0	10
Toronto C	McMaster C	10	10	0	20
Queen's B	Toronto E	0	10	0	10
Toronto A	McGill C	10	10	10	30
Toronto B	Toronto I	10	10	10	30
Toronto D	McGill B	10	10	0	20
Toronto J	Waterloo	0	10	0	10
Ottawa	Toronto K	10	10	0	20
Toronto Metropolitan	Western Ontario	0	0	0	0
UF B	FIU	0	10	0	10
UCF A	UCF B	10	10	10	30
UF A	UF E	0	10	0	10
Missouri A	WashU A	10	10	10	30
Chicago B	Purdue C	10	10	10	30
Michigan B	Chicago C	10	10	0	20
Notre Dame D	Illinois B	0	10	0	10
Louisville A	Chicago D	0	10	0	10
Michigan A	Notre Dame A	10	10	0	20
UIC	Michigan C	0	10	0	10
Indiana A	Notre Dame B	10	10	10	30
Kentucky	Purdue A	0	10	0	10
Illinois C	Purdue B	0	0	0	0
St. Thomas	Macalester A	0	10	0	10
Macalester B	Carleton	0	10	0	10
Minnesota B	Minnesota A	0	10	0	10
Minnesota C	Nebraska	10	10	0	20
Iowa State	Wisconsin	10	10	0	20
British Columbia B	Alberta	0	10	0	10
British Columbia C	British Columbia A	10	0	10	20
British Columbia D	Washington A	10	10	0	20
Washington B	Simon Fraser	0	10	0	10
Arizona State A	McGill D	10	10	10	30
Northwestern C	Arizona State B	0	0	0	0
Northwestern A	Northwestern B	10	10	10	30
Ohio	Rose State	0	10	0	10
Texas A	Texas B	10	10	0	20
Iowa	Tulsa	10	10	10	30
Alberta B	UCO	0	0	0	0
UTD B	UTD A	0	0	0	0
Alabama B	UAB A	0	10	0	10
Auburn A	Georgia Tech D	0	10	10	20
Auburn B	Sewanee A	10	10	0	20
Bruin A	Vanderbilt A	10	10	10	30
Georgia Tech A	Georgia Tech B	10	10	10	30
Georgia Tech C	Vanderbilt B	10	10	10	30
Huntsville B	Huntsville A	0	0	0	0
Alabama A	Mississippi State A	0	10	0	10
Bristol B	Cambridge C	0	10	0	10
Cambridge B	City St George's A	10	10	0	20
Imperial A	Sheffield B	10	10	10	30
LSE A	Imperial B	0	10	0	10
Durham B	Manchester A	0	0	0	0
Oxford A	Southampton A	10	10	10	30
Durham A	Sheffield A	0	10	0	10
Sheffield C	Imperial C	0	10	0	10
Oxford B	Southampton B	0	10	0	10
Notre Dame C	Louisville B	10	10	0	20