Gk questions about science for competitive exams
01. Which acid is found in Vinegar ?
Answer:- Acetic Acid
02. Which acid is used in Photography?
Answer:- Oxalic Acid
03. Which acid is used in lemons ?
Answer:- Citric Acid
04. The fuel used a Diesel Engine?
Answer :- Vapour of diesel and air
05. Who Invented Gobar Gas system?
Answer:- S. V. Desai
06. What is the full form of CNG?
Answer:- Compressed Natural Gas
07. Diesel used in heavy vehicles for ?
Answer:- High power and financially secure
08. In what from cooking gas is supplied in cylinders ?
Answer:- Liquid
09. The main component of Honey is ?
Answer:- Fructose
10. Which is the main component of L.P.G?
Answer:- butane
11. Milk is an example of ?
Answer:- An emulsion
12. Milk openly placed for sometime becomes sour due to ?
Answer:- Lactic Acid
13. CNG used in automobile to check pollution mainly consists of ?
Answer:- CH4
14. The main component of Gobar Gas is?
Answer:- Methane
15. The chemical used in manufacturing of Dynamite is ?
Answer:- Glycerol trinitrate
16. RDX was invented By ?
Answer:- Henning
17. Charcoal which is used in decolourise raw sugar is?
Answer:- Animal Charcoal
18. Gasohol is a mixture of?
Answer:- Gasoline and Ethanol
19. Biogas mainly consists of ?
Answer:- Carbon dioxide and Methane
20. Cooking gas is mainly ?
Answer:- Methane
21. Octane number is a measure of the quality of ?
Answer:- Petrol
22. The percentage of nitrogen in urea is ?
Answer:- 47%
23. The plants receive nitrogen in form of ?
Answer:- Nitrate
24. Humus is an example of?
Answer:-;Organic Colloids
25. Which gas is used in fire extinguisher ?
Answer:- Carbon Dioxide
26. Which chemical substances is used for making rat poison?
Answer:- Potassium Cyanide
27. Aluminium phosphide is used as ?
Answer:- Insecticide
28. Amount of rain depends on ?
Answer:- Humidity in atmosphere
29. Methane is present in the atmosphere of ?
Answer:- Mars
30. Red ink is prepared from?
Answer:- Eosin
31. In india, water desalination plant is located in ?
Answer:- Lakshadweep
32. Which chemical acts as a reclamation agent for alkaline soil ?
Answer:- Calcium sulphate
33. The energy, found in dry cell is ?
Answer:- Chemical
34. Bhopal Gas tragedy was caused due to the leakage of?
Answer:- Methyl Isocyanate
35. What gases are filled in fluorescent tube?
Answer:- Mercury and Neon
36. Which is the gas inside an electric bulb?
Answer:- Argon and Nitrogen
37. The unit of the force is ?
Answer:- Newton
38. The velocity of wind is measured by ?
Answer:- Anemometer
39. Pyrometer is used to measure?
Answer:- High Temperature
40. What is measured by manometer?
Answer:- Pressure of gas
41. The Newton's first law is also called as ?
Answer:- law of inertia
42. Hydro-electric power is:
Answer:- Renewable natural resource
