MCQ Collection
MDCAT 2026 MCQs
Practice MDCAT 2026 questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: C. Bent
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. sp²
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. 1.21 V
Explanation:
For standard reduction potentials, E°cell = E°cathode − E°anode.
The positive result indicates a spontaneous standard cell reaction.
Choose an option to check your answer.
Correct Answer: B. 0.40 V
Explanation:
For standard reduction potentials, E°cell = E°cathode − E°anode.
The positive result indicates a spontaneous standard cell reaction.
Choose an option to check your answer.
Correct Answer: C. Oxidation occurs
Explanation:
Oxidation and reduction occur at separate electrodes in a galvanic cell.
Electron and ion movement complete the circuit.
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Correct Answer: D. Reduction occurs
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: A. It is assigned a potential of 0.00 V
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: 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.
