Practice IB Chemistry Topic S2.2 the Covalent Model with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for S2.2 the Covalent Model and mirrors Paper 1A, 1B, 2 style where relevant.
Get instant solutions, detailed explanations, and build confidence with questions aligned to IB examiner expectations.
Which of the following atoms can form four covalent bonds in a neutral molecule?
Which is correct for the molecule shown?
| Electron domain geometry | Molecular geometry |
|---|
| A. | Trigonal bipyramidal | T-shaped |
| B. | Octahedral | T-shaped |
| C. | Octahedral | Trigonal bipyramidal |
| D. | Trigonal bipyramidal | See-saw |
Nitrite ion, , is a polyatomic ion involved in biological nitrogen cycles.
(a) two valid Lewis structures for the nitrite ion, including all formal charges.
(b) the formal charge on each atom in one of the resonance structures.
What is the total number of electrons shared in a triple bond?
Nitrogen
Oxygen
Carbon
Fluorine
A
B
C
D
Which is correct for the molecule shown?
| Case | Electron domain geometry | Molecular geometry |
|---|---|---|
| A | Trigonal bipyramidal | T-shaped |
| B | Octahedral | T-shaped |
| C | Octahedral | Trigonal bipyramidal |
| D | Trigonal bipyramidal | See-saw |
(c) the nature of the bonding in in terms of resonance.
