SSC Chemistry Previous year questions Set 4

31. In which of the following substances all carbon atoms are quaternary in nature ? [SSC Tax Assistant (Income Tax & Central Excise) 2004] A. Graphite
B. Diamond
C. Teflon
D. Napthalene

Answer –B. Diamond

32. The element which is commonly used in nuclear for producing electricity by nuclear fission is -[SSC Section Officer (Audit) 2001]
A. Radium
B. Plutonium
C. Uranium
D. Deuterium

Answer –C. Uranium

33. Quartz is made of_ [SSC CGLL Prelim 2004]
A. Calcium Sulphate
B. Calcium Silicate
C. Sodium Sulphate
D. Sodium Silicate

Answer –D. Sodium Silicate

34. Which one of the following metals is used to galvanise iron ? [SSC CPO Sub-Inspector 2003]
A. Copper
B. Lead
C. Zinc
D. Mercury

Answer –C. Zinc

35. When there are two electrons in the same orbital, they have:[SSC CGL 2002]
A. same spin
B. opposite spin
C. same or opposite spin
D. no spin

Answer –B. opposite spin

36. Who developed atom bomb ?[SSC CGL 2002]
A. Warner Wan Brown
B. J. Robert Openheimer
C. Edward Taylor
D. Samuel Koehen

Answer –B. J. Robert Openheimer

37. What is the chemical name for ‘baking soda’? [SSC CGL Prelim 2000]
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium nitrite
D. Sodium nitrate

Answer –B. Sodium bicarbonate

38. Nucleus of an atom consists of. [SSC Section Officer (Audit) 2003]
A. Proton
B. Neutron
C. Proton and Neutron
D. Electron, Proton and Neutron

Answer –C. Proton and Neutron

39. Baryllium Sulphate is less soluble in water due to [ SSC Section Officer (Audit) 1997]
A. High inflammable energy
B. Low Energy of dissociation
C. Low inflammable energy
D. Lonic band

Answer –A.High inflammable energy

40. The anode in a dry cell consists of – [SSC Section Officer (Audit) 2001]
A. Copper
B. Zinc
C. Cadmium
D. Graphite

Answer –B. Zinc

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