Podcast
Questions and Answers
Which element is a colorless gas and very non-reactive chemically?
Which element is a colorless gas and very non-reactive chemically?
- Lithium (correct)
- Boron
- Carbon
- Hydrogen
Which element is a grey metal, much harder than lithium, and fairly reactive chemically?
Which element is a grey metal, much harder than lithium, and fairly reactive chemically?
- Helium
- Beryllium
- Hydrogen
- Boron (correct)
Which element reacts readily with oxygen to form H2O and forms HCl with chlorine?
Which element reacts readily with oxygen to form H2O and forms HCl with chlorine?
- Carbon
- Lithium
- Beryllium
- Helium (correct)
Which element is a yellow or brown non-metal, very hard, and not very reactive?
Which element is a yellow or brown non-metal, very hard, and not very reactive?
Which element is black, brittle, and non-reactive at room temperature?
Which element is black, brittle, and non-reactive at room temperature?