General Knowledge Questions And Answers :: General Science: part22



General Knowledge : General Science QUESTIONS AND ANSWERS :: part22 : 51 to 55

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

51.Liquefied Petroleum Gas consists of mainly :

methane, ethane and hexane
ethane, hexane and nonane
methane, butane and propane
methane, hexane and nonane

52.An atom has 17 electrons, 17 protons, 18 neutrons. Therefore which of the following is/are true ? 1. Its atomic number is 172. Its mass number is 35

1
2
1 and 2
Neither 1 or 2

53.Which of the following is the second most abudant metal in the earths crust ?

Copper
Aluminium
Iron
Zinc

54.Which of the following is the lightest gas ?

Nitrogen
Hydrogen
Ammonia
Carbon dioxide

55.In addition to the idea that matter consists of molecules, the kinetic theory of matter assumes that these molecules :

are perfectly stationary in solids
are always in motion
move only when strck by other molecules
are usually closer together in a gas than in liquid

More General Science QUESTIONS AND ANSWERS available in next pages

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