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Chemistry Past Questions and Answers

Neco Chemistry Questions

Question 111:
NECO 2008
Which of the following is a component of the car exhaust?
SchoolNGR Classroom
  • A Aluminium
  • B Calcium
  • C Iron
  • D Zinc
  • E Lead
View Answer & Explanation
Question 112:
NECO 2008
The molecular formula of ethylbutanoate is?
SchoolNGR Classroom
  • A C[/sub]H[sub]5COOC26
  • B C3H[/sub]COOC[sub]2H7
  • C C3H7COOC3H7
  • D C3H7COOC4H9
  • E C3H7COOC2H5
View Answer & Explanation
Question 113:
NECO 2008
The rate of a chemical reaction is NOT affected by one of these factors
SchoolNGR Classroom
  • A Colour
  • B Concentration
  • C Presence of light
  • D Surface area
  • E Temperature
View Answer & Explanation
Question 114:
NECO 2008
Pipe-borne water is usually chlorinated in order to ____________
SchoolNGR Classroom
  • A Coagulate sediments in the water
  • B Improve taste of the water
  • C Kill harmful bacteria in the water
  • D Make it pure
  • E Remove the hardness in the water
View Answer & Explanation
Question 115:
NECO 2008
The planet with the highest number of moon is ____________
SchoolNGR Classroom
  • A Earth
  • B Jupiter
  • C Uranus
  • D Pluto
  • E Venus.
View Answer & Explanation

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