Which gate creates superposition from |0⟩?

Question: Which quantum gate commonly creates an equal superposition from the state |0⟩? A) CNOT gate B) Hadamard gate C) SWAP gate D) Measurement gate Correct: B Explanation: The Hadamard gate transforms |0⟩ into (|0⟩ + |1⟩)/√2, which gives equal probability of measuring 0 or 1. Topic: quantum computing / gates / Hadamard