Post Utme Chemistry Questions
Question 421:
Which law explains why car tyres expand slightly on hot days?
- A Newton’s law
- B Faraday’s law
- C Boyle’s law
- D Charles’ law
Question 422:
The product of pressure and volume in Boyle’s law remains:
- A Unpredictable
- B Increasing always
- C Decreasing always
- D Constant
Question 423:
Metals are generally lustrous because they:
- A Dissolve completely in acids
- B Form coloured precipitates rapidly
- C Possess shiny surfaces naturally
- D Produce gaseous compounds easily
Question 424:
Group I metals are stored under oil mainly because they:
- A Conduct heat efficiently
- B React rapidly with air
- C Possess high melting points
- D Form coloured compounds
Question 425:
Elements placed in Group I of the periodic table are commonly known as:
- A Transition metal elements
- B Halogen gaseous elements
- C Noble gaseous elements
- D Alkali metal elements