MCQ Collection
MDCAT Chemistry MCQs
Practice MDCAT Chemistry questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: C. HF
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: D. Head-on orbital overlap
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: A. Sideways overlap of parallel p orbitals
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: B. They flow from anode to cathode
Explanation:
Oxidation and reduction occur at separate electrodes in a galvanic cell.
Electron and ion movement complete the circuit.
Choose an option to check your answer.
Correct Answer: C. It maintains electrical neutrality by ion movement
Explanation:
Oxidation and reduction occur at separate electrodes in a galvanic cell.
Electron and ion movement complete the circuit.
Choose an option to check your answer.
Correct Answer: D. p subshell
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: A. Principal quantum number n
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: B. 1s² 2s² 2p⁶ 3s¹
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: C. s orbital
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
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Correct Answer: D. Singly with parallel spins
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: A. Trigonal planar
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
Choose an option to check your answer.
Correct Answer: B. Trigonal pyramidal
Explanation:
Atomic orbitals and electron-pair repulsions determine bonding and molecular shape.
The stated option follows the relevant electronic or VSEPR rule.
