The collection includes hydrocarbons, alcohols, polymers, organic acids, explosive substances, fuels, and related organic chemistry topics. 280. Unsaturated hydrocarbons usually produce: [RRB …
Non-metals: Carbon and its forms, Hydrogen and its compounds, Sulphur, Nitrogen, Halogens, Inert Gases, and Acids, Bases and Salts. 180. When hydrochloric …
Q35. Which of the following substances has the highest resistivity? [RRB Group D 2025-cycle Official Paper (21 August 2026, Shift 1)] (A) …
Q80. Which of the following is NOT one of the belts of iron ore deposits in India? [SSC Selection Post (Graduate Level), …
Q35. Which chemical weathering process occurs when atmospheric or soil carbon dioxide dissolves in water? [RRB NTPC Graduate Level CBT-II, 10 July …
50. Which of the following is NOT an example of a colloid? [RRB Group D, 25 Aug 2026, Shift 2] (A) Milk …
50. Which of the following phenomena is explained by Bohr’s model? [RRB Group D — 14 Aug 2026, Shift 1] (A) Rutherford …
Q100. Consider the following inventor–invention pairs: 1. Flying shuttle loom — John Kay; 2. Water frame — James Hargreaves; 3. Spinning jenny …
Q150. On 11 January 2026, DRDO successfully tested which third-generation fire-and-forget missile capable of top attack against moving targets? [DSSSB MTS, 26 …
Q292. Which generation of computers employed microprocessors as its defining hardware technology? [UPSC CDS 2026 (General Knowledge)] Answer: C. Fourth generation Explanation: …
