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Chemistry JAMB Past Questions

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1006

Which of the following can have an isomer?

  • A. C2H4
  • B. C4H10
  • C. C3H8
  • D. C2H6
  • E. C6H6
View Answer & Discuss (11) JAMB 1981
1007

Allotropes are elements having?

  • A. different physical but the same chemical properties
  • B. different chemical but the same physical properties
  • C. the same chemical and physical properties
  • D. different atomic structure
  • E. the same position in the periodic table
View Answer & Discuss (29) JAMB 1981
1008
A polymerization reaction is one in which?
  • A. small molecules form giant molecules
  • B. atoms form molecules
  • C. giant molecules form small molecules
  • D. molecules form volatile compounds
  • E. a molecule rearranges itself
View Answer & Discuss (2) JAMB 1981
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1009
Which of the following is the electronic configuration of sodium?
(Atomic number of Na = 11)
  • A. 1s2 2s22p6 3s2
  • B. 1s2 2s22p6 3s2 3p1s2 2s22p6 3s1
  • C. 1s2 2s22p6 3s1
  • D. 1s2 2s22p6 3s°
  • E. 1s2 2s22p6 4s1
View Answer & Discuss (1) JAMB 1981
1010

In the reaction of oxygen with hydrogen to produce water, which of the following statements is true?

  • A. One atom of hydrogen reacts with two atoms of oxygen to give one molecule of water
  • B. Two atoms of hydrogen react with two atoms of oxygen to give two molecules of water
  • C. One molecule of oxygen reacts with one molecule of hydrogen to give two molecules of water
  • D. One molecule of hydrogen reaccts with two molecules of oxygen to give three molecules of water
  • E. One molecule of oxygen reacts with two molecules of hydrogen to give two molecules of water
View Answer & Discuss (7) JAMB 1981
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