एक रासायनिक अभिक्रिया जिसमें किसी अणु में उपस्थित एक परमाणु या परमाणुओं के समूह को दूसरे परमाणु या परमाणुओं के समूह द्वारा प्रतिस्थापित कर दिया जाता है, क्या कहलाती 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?