एक बाइनरी यौगिक (binary compound) वह रासायनिक पदार्थ है जिसमें केवल दो अलग-अलग तत्व होते हैं। निम्नलिखित में से कौन-सा एक गैर-बाइनरी यौगिक 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?