Class 9 Chemistry MCQs – Practice Test for Exam Prep

Ions and Free Radicals Multiple Choice Questions with Answers – PDF Download

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Ions and Free Radicals MCQs PDF Download – Prep Test

MCQ 1: Free radicals are electrically:

positively charged
negatively charged
neutral
all of above

MCQ 2: Ca on losing 2 electrons becomes:

Ca^-2
Ca^-1
Ca⁺²
Ca^-2

MCQ 3: The smallest part of an element that cannot exist as a free state is:

ion
charge
atom
molecule

MCQ 4: A free radical has:

unpaired electrons
paired electrons
no electrons
even number of electrons

MCQ 5: An oxide ion has -2 charge because:

oxygen looses two electrons
oxygen gains two electrons
oxygen becomes neutral
oxygen gains 3 electrons

Class 9 Chemistry MCQs App & e-Book – Ions and Free Radicals Practice Tests

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