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NEET UG Redox & Electrochemistry — practice questions

Explore 28 free Redox & Electrochemistry questions in NEET UG Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Redox & Electrochemistry questions and exercises with answers

Showing questions 1–28 of 28.

In a redox reaction, oxidation and reduction occur:Read the answer and worked solution →A half reaction that involves loss of electrons is called:Read the answer and worked solution →A half reaction that involves gain of electrons is called:Read the answer and worked solution →An atom of a free uncombined element has an oxidation number of:Read the answer and worked solution →For a single atom ion, the oxidation number equals the:Read the answer and worked solution →All alkali metals in their compounds have an oxidation number of:Read the answer and worked solution →All alkaline earth metals in their compounds carry:Read the answer and worked solution →Aluminium is regarded as having which oxidation number?Read the answer and worked solution →The oxidation number of oxygen in most compounds is:Read the answer and worked solution →In which compounds is the usual oxygen rule an exception?Read the answer and worked solution →The oxidation number of hydrogen is usually:Read the answer and worked solution →In lithium hydride the oxidation number of hydrogen is:Read the answer and worked solution →The algebraic sum of oxidation numbers in a neutral compound is:Read the answer and worked solution →Are all decomposition reactions redox reactions?Read the answer and worked solution →In which reaction is an ion in a compound replaced by another?Read the answer and worked solution →Recovering halogens from their halides requires which process?Read the answer and worked solution →A reaction where one element is both oxidised and reduced is:Read the answer and worked solution →A disproportionating element must exist in at least how many states?Read the answer and worked solution →In a disproportionation, the reacting element starts in a state that is:Read the answer and worked solution →Decomposition of which compound is a familiar disproportionation?Read the answer and worked solution →Oxidation or reduction?Read the answer and worked solution →Match each species to its oxidation numberRead the answer and worked solution →True or false about redox reactionsRead the answer and worked solution →Sort each reaction by its typeRead the answer and worked solution →Fill the gaps on oxidation numbersRead the answer and worked solution →Order the working of an oxidation numberRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →

Worked practice questions

In a redox reaction, oxidation and reduction occur:

  1. Simultaneously
  2. Sequentially
  3. Separately
  4. Selectively
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Correct answer: A. Simultaneously

1. The two half reactions belong to one process. 2. Electrons lost by one are gained by another. 3. They occur simultaneously. _Source: syllabus Chemistry, Unit 7 'Redox Reactions'_

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A half reaction that involves loss of electrons is called:

  1. Reversion
  2. Oxidation
  3. Reduction
  4. Radiation
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Correct answer: B. Oxidation

1. Electrons leave the species. 2. The counterpart involves gain of electrons. 3. It is oxidation. _Source: syllabus Chemistry, Unit 7 'Redox Reactions'_

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A half reaction that involves gain of electrons is called:

  1. Radiation
  2. Reversion
  3. Reduction
  4. Oxidation
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Correct answer: C. Reduction

1. Electrons arrive at the species. 2. The counterpart involves loss of electrons. 3. It is reduction. _Source: syllabus Chemistry, Unit 7 'Redox Reactions'_

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More Chemistry topics

Amines and BiomoleculesChemical KineticsAldehydes, Ketones and Carboxylic AcidsEquilibriumRedox ReactionsHydrocarbonsChemical Bonding and Molecular StructureSolutions