Which element is blue in liquid state?

hydrogen

nitrogen

oxygen

helium

Liquid oxygen has a pale blue color and is strongly paramagnetic. The first measurable quantity of liquid oxygen was produced by Polish professors Zygmunt Wróblewski and Karol Olszewski (Jagiellonian University in Kraków) on April 5, 1883.

wikimedia wikipedia → Liquid oxygen

chemical elementschemistryscience

Chemical elements quiz Science quiz Chemistry quiz

You will play as

Answers by country

France

23%

70%

the Netherlands

13%

66%

13%

Australia

15%

55%

13%

Poland

12%

24%

45%

17%

3105

Canada

27%

45%

15%

Germany

14%

18%

43%

22%

512

the United States

16%

22%

43%

16%

298

Malaysia

25%

43%

Austria

14%

28%

42%

13%

Vietnam

35%

42%

21%

the United Kingdom

13%

30%

40%

15%

173

Greece

28%

38%

28%

Switzerland

23%

15%

36%

21%

India

18%

30%

33%

15%

533

Republic of Ireland

12%

43%

31%

12%

Ghana

20%

33%

30%

16%

Nigeria

24%

21%

27%

26%

118

the Philippines

21%

28%

26%

21%

Singapore

15%

30%

25%

30%

Pakistan

20%

26%

24%

28%

What is the name of the most radioactive isotope on the planet?

Which chemical element forms compounds which are typically intensely colored?

Which of the following is not a chemical element?

What numbers do NOT exist in Mathematics?