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Chemistry Past Questions and Answers

Neco Chemistry Questions

Question 166:
A neon atom is chemically nonreactive because ____________
  • A The electrons at the outermost shell is partially filled
  • B The number of protons equals the number of electrons
  • C The outer electron shell is completely filled
  • D There are equal number of protons and neutrons in its nucleus
  • E There are no elections at the outermost shell
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Question 167:
In the electrolysis of dilute tetraoxosulphate (VI) acid using platinum electrodes, the products obtained at the anode are cathode respectively are ____________
  • A Hydrogen, oxygen
  • B Hydrogen, tetraoxosulphate (VI) ion
  • C Oxygen, hydrogen
  • D Sulphur, hydrogen
  • E Sulphur, oxygen
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Question 168:
C\(_6\)H\(_{12}\)O\(_6\)
What is the molar mass of the compound above?
[ H=1, C=12, O=16 }
  • A 45
  • B 61
  • C 180
  • D 123
  • E 244
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