आवर्त सारणी में निम्नलिखित में से किस समूह के तत्वों को आमतौर पर 'कैल्कोजन' (chalcogens) कहा जाता है?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?