Post Utme Chemistry Questions
Question 496:
Sodium belongs to the periodic table group called:
- A Halogen element group
- B Transition metal group
- C Noble gas group
- D Alkali metal group
Question 497:
Covering iron with grease helps prevent rusting mainly by:
- A Producing protective acids
- B Removing surface impurities
- C Increasing metallic hardness
- D Blocking air and moisture
Question 498:
The outer electron configuration of Group I elements usually contains:
- A Eight outer electrons
- B One outer electron
- C Two outer electrons
- D Seven outer electrons
Question 499:
The most reactive group of metallic elements is the:
- A Carbon element group
- B Transition metal group
- C Noble gas group
- D Alkali metal group
Question 500:
Iron is extracted from haematite mainly by reduction using:
- A Carbon monoxide gas
- B Hydrogen chloride gas
- C Nitrogen atmospheric gas
- D Oxygen gaseous element