For RRB EXAM. 2025 +++++++ Q1:What are Dobereiner's triads? Ans: Groups of three elements arranged by Dobereiner based on increasing atomic masses. Q2: What happens when 3Ω, 2Ω, and 6Ω resistors are connected in parallel? Ans: The potential difference (voltage) across each resistor is the same. Q3: What is the chemical formula for a carboxylic acid? Ans: COOH. Q4: What is the general structure of a ketone? Ans: R-CO-R. Q5: What functional group defines an ester in organic chemistry? Ans: COOR. Q6: Who led the Bardoli Satyagraha in 1928? Ans: Vallabhbhai Patel. Q7: What does a higher indifference curve represent in indifference curve analysis? Ans: A higher level of satisfaction for a consumer. Q8: In which food is oxalic acid found? Ans: Tomatoes. Q9: When and where was the Central Institute of Indian Languages (CIIL) established? Ans: In 1969, in Mysore (now Mysuru). Q10: In the reaction ZnO + C → Zn + CO, what happens to ZnO? Ans: ZnO is reduced to Zn. Q11: What is the National Backward Classes Finance and Development Corporation (NBCFDC)? Ans: A Government of India undertaking under the Ministry of Social Justice and Empowerment. Q12: When is World TB Day celebrated? Ans: March 24. Q13: Where is the Painkuni festival celebrated? Ans: Kerala. Q14: Which amendment added Fundamental Duties to the Indian Constitution? Ans: The 42nd Amendment Act of 1976. Q15: What is metallurgical coal used for? Ans: It is used in blast furnaces to smelt iron. Q16: What is lignite? Ans: A low-grade brown coal. Q17: Which type of coal is most widely used for commercial purposes? Ans: Bituminous coal. Q18: What are ‘Loo’ winds? Ans: Dry and hot winds in the context of local winds. Q19: Do different colors of light refract at the same angle in a prism? Ans: No, the angle of refraction differs for different colors. Q20: Is the equation 2AgBr(s) --(Sunlight)→ 2Ag(s) + Br₂(g) balanced? Ans: Yes, it is a fully balanced equation. Q21: What prevents the trachea and bronchi from collapsing in the human respiratory system? Ans: Cartilaginous rings. ++++++ For Daily Current Affairs, G.K, Quiz, PDF Books & Notes- --- Follow WhatsApp Channel – https://whatsapp.com/channel/0029VaCHyK20wajnUKBizz2S ---- JOIN Telegram Channel – https://tx.me/speedypatna Or Search 'speedypatna' on Telegram channel & JOIN the channel. --- Follow facebook - https://www.facebook.com/RajivKumarSahuOfficial/ +++ Also share this with your friends