Q1. Which of the following is a common component in toothpaste, for cleaning the teeth by neutralising the excess acid to prevent tooth decay?
- (a) Halogens
- (b) Acids
- (c) Bases
- (d) Salts
Answer & solution
Answer: (c) Bases
All 39 GK / GS questions asked in RRB NTPC GL CBT-1 2024-25 on 9 June 2025 Shift 2, with correct answers and short solutions, subject-wise: Chemistry, Geography, Current Affairs, Static GK, Polity, Economics.
Answer: (c) Bases
Answer: (d) Vertical column
Answer: (b) localised irrigation
Answer: (c) Increased plantation of native trees
Answer: (a) Odisha
Answer: (c) Gondwana Land
Answer: (b) Mikir Hills
Answer: (a) Maldives
Answer: (b) Sanjay Malhotra
Answer: (b) Samantha Harvey
Answer: (d) He bagged a silver medal in the 65 kg category.
Answer: (b) After 27 years, securing 48 seats
Answer: (c) ISRO Chairman
Answer: (c) 2 > 1 > 3 > 4
Answer: (c) Busan, South Korea
Answer: (a) Only 1
Answer: (b) Haryana
Answer: (a) Thailand
Answer: (c) To create a smooth white base for painting
Answer: (b) Geru
Answer: (c) Assam Accord
Answer: (c) secondary rank within the portfolios assigned to Cabinet Ministers
Answer: (d) Protection of Fundamental Rights
Answer: (c) National Social Assistance Programme
Answer: (c) 28.4%
Answer: (a) 1958
Answer: (a) Five-Year Plans
Answer: (c) Poverty Headcount Ratio
Answer: (a) 57 to 79
Answer: (c) Pulakesin I
Answer: (b) Rudradaman I
Answer: (d) To record information about the files and directories, such as their names, sizes, timestamps and permissions
Answer: (b) ASCII represents characters as numerical codes.
Answer: (a) Double-click the .xlsx file in File Explorer
Answer: (a) Pre-defined theme colours
Answer: (c) File tab
Answer: (a) They are multicellular and may be secretory.
Answer: (d) Raja Ram Mohan Roy
Answer: (d) Revolt of 1857