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
flagCanada
17%
2%
73%
7%
41
flagAustralia
9%
7%
68%
14%
41
flagItaly
18%
3%
68%
9%
32
flagthe Netherlands
17%
12%
66%
2%
39
flagFrance
8%
21%
65%
4%
23
flagthe United Arab Emirates
20%
6%
60%
13%
15
flagthe Philippines
23%
11%
59%
2%
42
flagPakistan
16%
16%
58%
5%
53
flagNorway
15%
7%
57%
15%
26
flagRepublic of Ireland
15%
23%
53%
7%
26
flagMalaysia
11%
7%
53%
26%
26
flagPoland
22%
13%
52%
12%
11290
flagthe United States
20%
11%
52%
15%
595
flagthe United Kingdom
15%
15%
51%
16%
347
flagIndia
21%
16%
50%
9%
350
flagNigeria
33%
13%
50%
0%
30
flagGermany
20%
13%
49%
15%
120
flagSingapore
20%
13%
46%
20%
15
flagSweden
28%
7%
42%
21%
14
flagUnknown
31%
11%
41%
15%
687

Gender

men47%
women51%
Sprite
24%
20%
milk
14%
14%
tonic water
47%
51%
pineapple juice
13%
14%

Language versions

question
answers
results
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Which beverage is is fluorescent in UV light?
1606
54%

Details

Author: Luca Biaggi
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