Which of the following gases emits a rotten-egg smell? निम्नलिखित में से किस गैस में से सड़े-अंडे जैसी गंध निकलती है

✅ Correct Answer: A

H₂S

📚 Learning Context: Current Affairs

General competitive examinations frequently test candidates on Current Affairs topics. Questions like "Which of the following gases emits a rotten-egg sm..." are designed to verify factual recall and general awareness. Regular practice on similar MCQs ensures a higher accuracy rate. The correct option here is H₂S.