Post Utme Chemistry Questions
Question 446:
Stainless steel resists corrosion mainly because it contains:
- A Sodium reactive element
- B Calcium reactive element
- C Sulfur brittle element
- D Chromium protective element
Question 447:
During extraction of iron, hot air is introduced mainly to:
- A Cool molten iron rapidly
- B Burn coke efficiently
- C Prevent ore reduction
- D Remove slag completely
Question 448:
A common property shared by halogens is that they:
- A Form negative ions easily
- B Conduct electricity strongly
- C Exist mainly as metals
- D Produce alkaline solutions
Question 449:
Noble gases are placed in Group 0 because they:
- A React strongly with water
- B Form acidic oxides rapidly
- C Rarely undergo reactions
- D Conduct electricity strongly
Question 450:
Metals are generally malleable because they can:
- A Break easily under force
- B Produce acidic solutions
- C Form thin metal sheets
- D Dissolve rapidly in water