Which beverage is is fluorescent in UV light?

Sprite
milk
tonic water
pineapple juice
Tonic water is trans­par­ent in day­light. Under ul­tra­vi­o­let light, the quinine makes it flu­o­res­cent (pic­tured), even though it is present in a neg­li­gi­ble con­cen­tra­tion.

Answers distribution

Sprite
milk
tonic water
pineapple juice
answers
flagItaly
14%
3%
75%
7%
28
flagCanada
18%
2%
73%
5%
38
flagthe Netherlands
20%
8%
68%
2%
35
flagNorway
9%
4%
66%
14%
21
flagIndonesia
8%
0%
66%
25%
12
flagAustralia
11%
8%
65%
14%
35
flagFrance
11%
22%
61%
5%
18
flagthe Philippines
21%
15%
57%
3%
33
flagthe United Arab Emirates
21%
7%
57%
14%
14
flagMalaysia
8%
8%
54%
29%
24
flagthe United Kingdom
15%
14%
53%
16%
307
flagRepublic of Ireland
15%
23%
53%
7%
26
flagPoland
21%
13%
52%
12%
9145
flagPakistan
19%
19%
52%
5%
36
flagthe United States
21%
11%
51%
14%
532
flagIndia
20%
16%
51%
9%
291
flagGermany
20%
13%
50%
14%
104
flagSingapore
21%
14%
42%
21%
14
flagUnknown
30%
14%
40%
15%
363
flagNigeria
40%
16%
40%
0%
25

Gender

men49%
women52%
Sprite
22%
19%
milk
15%
14%
tonic water
49%
52%
pineapple juice
12%
13%

Language versions

question
answers
results
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Which beverage is is fluorescent in UV light?
1383
53%

Details

Author: Luca Biaggi
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