भारी हाइड्रोजन (ड्यूटेरियम) परमाणु में मौजूद न्यूट्रॉनों की संख्या कितनी होती है?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?