ब्लीचींग पाउडर का सूत्र है-

✅ Correct Answer: B

Ca(OCl)2

📚 Learning Context: Current Affairs

General competitive examinations frequently test candidates on Current Affairs topics. Questions like "ब्लीचींग पाउडर का सूत्र है-..." are designed to verify factual recall and general awareness. Regular practice on similar MCQs ensures a higher accuracy rate. The correct option here is Ca(OCl)2.