questionedithistorytranslations

What color is potassium permanganate in a strongly alkaline environment?

Blue
Violet
Green
Red
The permanganate anions are purple. In a strongly alkaline environment, they reduce to green manganese ions MnO4 (2-).
Ts
0
Correct this question
2
Very interesting!
reach: rather globalchemistry
Chemistry quiz
  You will play as

Answers by country

Blue
Violet
Green
Red
answers
flagthe United States
5%
24%
64%
5%
53
flagAustralia
5%
40%
40%
15%
20
flagNigeria
36%
26%
36%
0%
19
flagAustria
16%
33%
33%
16%
12
flagPoland
18%
42%
29%
9%
1104
flagGermany
29%
35%
28%
5%
84
flagIndia
6%
67%
20%
4%
74
flagthe United Kingdom
34%
34%
18%
12%
32

Does the candle burn more or less violently in zero gravity?

more violently
about the same
less violently
nobody knows

What color is octopus blood?

red
blue
green
yellow

What is the main difference between Coca-Cola sold in the US, and the Coca-Cola sold in the EU?

sugar
water
caffeine
CO2 level

What does synthesis gas (water gas) consist of?

oxygen (O2) and hydrogen (H2)
methane (CH4) and water (H2O)
carbon dioxide (CO2) and hydrogen (H2)
carbon monoxide (CO) and hydrogen (H2)