Breaking News

CHEMISTRY MCQs AND ABBREVIATION

CHEMISTRY MCQs AND ABBREVIATION







01. Sparkling red colour after the blast of fire cracker is due to the presence of Sulphur.

02. The chemical name of aspirin is Acetylsalicylic acid.

03. Animal fat has the highest calories per gram.

04 The commonly present element in the artificial fertilizer is Potassium, Nitrogen and Phosphorus.


05. Potassium nitrate is used in fertilizers.

06. The inherited traits of a person can be investigated by the study of Deoxyribonucleic acid.

07. Silicon is extensively used in electronics.

08. When a bullet is fired upwards vertically, it gains in Potential energy.

09. The mixture of Acetylene and oxygen gases is required in gas welding.


10. Isobars are the lines connecting the places having same Atmospheric pressure.

11. The velocity of wind is related to Pressure gradient.

12. The acid present in the sour milk is Formic acid.

13. The most important stimulant in tea leaves is Caffeine.

14. Dolly was the name of first cloned sheep.

15. The smallest living cell is that of a Mycoplasma (bacterium)

16. We lose consciousness if blood flow to the brain is cut off more than 5 sec.

17. Menopause usually occurs between 40 to 45 years.

18. Platypus and Echidnas are the only monotremes, or mammals that lay eggs.

19. Film is that part of camera which is analogue to the retina in the human eye.

20. 72-80 is the average adult pulse rate.

21. Magnetic resonance is the modern tool for imaging brain tumours.

22. The acid used in a car battery is sulphuric acid.

23. After drinking contaminated water, you would be most apt to develop symptoms of Typhoid
fever.

24. In eye donation, Cornea of donor‘s eye is utilized.

25. Alzheimer is a disease of Brain.

26. Cell was discovered by Robert Hooke.

27. A body is taken from Earth to Moon. Its weight will Decreases.


28. Brass is an alloy of Copper and Zinc.

29. Mineral essential for the coagulation of blood is Magnesium.

30. Milk is an example of Emulsion.

31. Iron is the most abundant transition metal.

32. Hydrometer is used to determine specific gravity of liquids.

33. Convex lenses are used for the correction of Long-sightedness (Hyperopia)

34. A transformer is used to Increase or decrease AC voltage.

35. The stones formed in human kidney consist mostly of Calcium oxalate.


36. Most of the explosions in mines occur due to the mixing of Methane with air.

37. A mobile phone sends and receives messages through Radio waves.

38. Fax machine receives the signal and give its output through the Printer.

39. The procedure of crushing the gallstone and kidney stone by laser is called Lithotripsy.

40. Laser is used to produce an image of One dimension.

41. Three dimensional image formed by laser is called Photograph.


42. The first laser ever used is Semiconductor laser.

43. Ordinary light spreads in all directions.

44. Optical fibres are the fine strands of Glass.

45. The satellites which revolve in such an orbit, so that they move with earth rotation are called Geo-stationary satellites.

46. The elements which emit radiations have atomic number greater than 82.

47. In a normal healthy body, the number of red cells or erythrocytes in each cubic millimetre of blood is 5.0 m.


48. The average life of a red blood cell in the body is about 120 days.

49. DNA is a class of nucleic acids.

50. Cellulose is a Carbohydrate.

No comments