What is the mass percentage of carbon in carbon dioxide (CO2)?
A). 15.8 %
B). 20.1 %
C). 27.3 %
D). 32.3 %
27.3 %
The mass percentage of carbon in carbon dioxide is 27.3 %.
1. Which among the following elements is found in maximum percentage in the human body ?
2. Which of the following gases is present under pressure in soft drinks?
3. Which of the following metals form an amalgam with other metals ?
4. Chemical name of Gammaxane is:?
5. Which one is the most dense liquid from the below?
8. The antiparticle of an electron is
10. Which among the following coal contains 90 per cent of carbon?