JAMB Chemistry 2021 Objective — Question 30
Question 30 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.
Advertisement
The two factors to be considered before choosing a method for collecting a gas are
- A. Solubility and densityCorrect
- B. Boiling point and density
- C. Solubility and melting point
- D. Colour and density
Explanation
Two factors for gas collection: (i) Solubility — a gas that is very soluble in water cannot be collected over water (e.g. NH₃, HCl, SO₂); (ii) Density — determines upward or downward delivery.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.