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
14%
2%
76%
5%
34
flagItaly
16%
0%
75%
8%
24
flagthe Netherlands
21%
4%
73%
0%
23
flagNorway
5%
5%
70%
15%
20
flagAustralia
12%
9%
65%
12%
32
flagMalaysia
9%
9%
59%
22%
22
flagthe Philippines
17%
17%
58%
3%
29
flagRepublic of Ireland
21%
10%
57%
10%
19
flagPakistan
19%
19%
54%
3%
31
flagthe United Kingdom
15%
14%
53%
16%
262
flagPoland
20%
14%
52%
12%
7033
flagthe United States
21%
11%
51%
14%
468
flagGermany
18%
14%
50%
14%
85
flagIndia
21%
16%
49%
9%
243
flagthe United Arab Emirates
27%
9%
45%
18%
11
flagNigeria
53%
13%
33%
0%
15

Gender

men51%
women53%
Sprite
18%
19%
milk
17%
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?
1187
53%

Details

Author: Luca Biaggi
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