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Ions and Free Radicals MCQs Quiz Online PDF Download eBook

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MCQs on Ions and Free Radicals PDF Download eBook

MCQ: Free radicals are electrically

  1. positively charged
  2. negatively charged
  3. neutral
  4. all of above

C

MCQ: Ca on losing 2 electrons becomes

  1. Ca-2
  2. Ca-1
  3. Ca+2
  4. Ca-2

C

MCQ: The smallest part of an element that cannot exist as a free state is

  1. ion
  2. charge
  3. atom
  4. molecule

C

MCQ: A free radical has

  1. unpaired electrons
  2. paired electrons
  3. no electrons
  4. even number of electrons

A

MCQ: An oxide ion has -2 charge because

  1. oxygen looses two electrons
  2. oxygen gains two electrons
  3. oxygen becomes neutral
  4. oxygen gains 3 electrons

B