Sunday, 6 November 2016

General science for competitive exams (Part1)



  1. N gas is used in tyres of aeroplanes. 
  2. The aq.  solution  of NH4Cl is acidic in Nature. 
  3. Isotopes of an element have same no. of neutrons
  4. A solution of sodium sulphate in water is electrolysed.using inert electrodes.The products at the anode and cathode are H2 and O2 . 
  5. Rubber is readily soluble in Carbon disulphide.
  6. Thorium is the radioactive element found mostly in India
  7. AgI is used in Artificial rain. AgBr is used in Photographic films.
  8. Malachite is an ore of Cu.
  9. Catalytic convertor used in vehicles covert NO present in the harmful gases into NO2. 
  10. Diamond is multicoloured chemically.
  11. Co, Al, Ni are ferrous metals. P is non ferrous metal. 
  12.  Californium is man made element
  13. Hard water can be used in drinking 
  14. S is used for hair setting in beauty parlours. 
  15. Glycolysis takes place in cytoplasm. 
  16. the end product of glycolysis is pyruvic acid. 
  17. Pyruvic acid is completely oxidised into CO2 and water is  Kreb's Cycle. 
  18. Apical dominance is due to the effect of auxin. 
  19. Auxin is synthesised by meristematic tissues. 
  20. Short day plants require a light period of 8-10 hrs. 
  21. Beta vulgaris is a long day plant. 
  22. Phytochrome pigment is involved in flowering 
  23. 2,4- Dichloro phenoxy acetic acid is an synthetic auxin. 
  24. Triple vaccine is administered to a new born child to immunise against Whooping cough, Diphtheria and tetanus. 
  25. Polished rice causes Beri-beri.
  26. Aquaculture is use of water for farming. 
  27. Reserpine is used to reduce high blood pressure. 
  28. Sour taste of coca-cola is due to the presence of acetic acid. 
  29. CO2 causes Greenhouse effect.
  30. Maize contains less carbohydrate.
  31. Ripe mangoes contain Vitamin C
  32. Onion is a bulb.
  33. Digested food is absorbed by duodenum
  34. Fingers have the largest number of bones in human body
  35. RBCs are double concave. Malaria causes deficiency of RBC. 
  36. 1 light year is 9.46 *10^12 km 
  37. The chairman of Atomic Energy Commission of India is Dr.Rtan Kumar Sinha. 
  38. Venus revolves southwards.
  39. Crystals having low m.P. are in the metallic bond. 
  40. Vikram Sarabhai Space centre at Thumb is situated at geomagnetic equator
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