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Question 0

In the laboratory preparation of oxygen, the gas cannot be collected by displacement of air because

  • A.the density of oxygen is greater than that of air
  • B.the density of air is nearly the same as that of oxygen
  • C.oxygen is a component of air
  • D.air is an impure substance
  • E.
Objective

Question details

Exam body
JAMB
Subject
Chemistry
Year
2018
Question no.
#0
Type
Objective
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