Which is the first state in India to become the basis of language? Ans:- Andhra Pradesh Who was the first Muslim invader to invade India? Ans:- Muhammad bin Qasim (712 AD) Who was the ambassador of Seleucus who came to the court of Chandragupta Maurya? Ans:- Magsthenes What is the old name of Sri Lanka? Ans:- Ceylon 05. Who discovered the vitamins? Ans:- By funk Stainless steel is an alloy of which of the following? Ans:- Iron, Chromium, Nickel 07. Bronze is an alloy of which? Ans:- Copper and Tin When did Swami Vivekananda address the World Conference of Religions held in Chicago? Ans: In 1893 When did the Jallianwala Bagh massacre take place? Ans:- 13 April 1919 When is the longest day in the Northern Hemisphere on Earth? Ans:- June 21st Where did Mahatma Buddha give his first sermon? Ans:- Sarnath Which leader was killed by lathi charge during the boycott of Simon Commission? Ans:- Lala Lajpat Rai What is the name of the first computer made in India? Ans:- Siddharth 14. 'Gayatri Mantra' is mentioned in which book? Ans:- Rigveda 15. In which organ does the digestive process of the human body take place mostly? Ans:- Small intestine 16. Who proounded the rules of heredity? Ans:- By Grigor Mandel Which metal was first used by humans? Ans:- Copper On which principle does the hair pen work? Ans:- Dorsal tension Silkworms are reared on the soft leaves of which tree? Ans:- Mulberry Khetri in Rajasthan is famous for? Ans:- Copper mine UN Secretary-General condemns Houthi attacks on Saudi civilian sites Durand Cup is related to which sport? Which disease is caused by vitamin 'E' deficiency?