निम्नलिखित में से कौन सी एक ऐसी अधातु है जो अपरूपता (allotropy) प्रदर्शित करती है और विभिन्न रूपों में मौजूद हो सकती 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?