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
16%
2%
75%
5%
36
flagItaly
15%
3%
73%
7%
26
flagthe Netherlands
20%
6%
72%
0%
29
flagNorway
5%
5%
70%
15%
20
flagAustralia
12%
9%
65%
12%
32
flagMalaysia
9%
9%
59%
22%
22
flagthe Philippines
19%
16%
58%
3%
31
flagRepublic of Ireland
19%
14%
57%
9%
21
flagPakistan
19%
19%
54%
3%
31
flagPoland
20%
14%
52%
12%
7578
flagthe United Kingdom
16%
15%
52%
16%
280
flagthe United States
21%
11%
51%
14%
493
flagIndia
21%
16%
50%
9%
262
flagthe United Arab Emirates
25%
8%
50%
16%
12
flagFrance
16%
25%
50%
8%
12
flagDenmark
20%
10%
50%
20%
10
flagGermany
19%
14%
48%
14%
96
flagUnknown
27%
16%
45%
10%
37
flagSingapore
9%
18%
45%
27%
11
flagNigeria
47%
11%
35%
0%
17

Gender

men51%
women53%
Sprite
18%
19%
milk
16%
13%
tonic water
51%
53%
pineapple juice
12%
13%

Language versions

question
answers
results
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Which beverage is is fluorescent in UV light?
1251
52%

Details

Author: Luca Biaggi
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