Flashcards for NEET Chemistry - Redox Reactions

Flashcards for NEET Chemistry are designed to boost your NEET preparation. Find below flashcards for the chapter β€œRedox Reactions”. These flashcards are prepared as per the NEET syllabus. These are helpful for aspirants of NEET and other exams during last-minute revision. It covers all the important points that are frequently asked in the exam. Check BYJU’S for the full set of Flashcards and Study material for NEET Chemistry.

Download PDF of NEET Chemistry Flashcards for Redox Reactions

Name of the NEET Sub-section

Topic

Flashcards Helpful for

Chemistry

Redox Reactions

NEET Exams

flashcards for neet chemistry nov12 redox reactions 1
flashcards for neet chemistry nov12 redox reactions 2
flashcards for neet chemistry nov12 redox reactions 3

   

Redox Reactions

Oxidation

Addition of oxygen/electronegative element to a substance or removal of hydrogen/electropositive element from a substance

Loss of electron(s) by any species

Reduction

Removal of oxygen/electronegative element from a substance or addition of hydrogen/electropositive element to a substance

Gain of electron(s) by any species

Redox Reactions

Oxidation and reduction always occur simultaneously, e.g.

H2S(g) + Cl2(g) β†’ 2 HCl(g) + S(s), here, H2S is oxidised and chlorine is reduced

2 Na(s) + H2(g) β†’ 2 NaH(s), here, sodium is oxidised and hydrogen is reduced

Disproportionation Reactions

It is a reaction in which an element is simultaneously oxidised and reduced, e.g.

2 H2O2(aq) β†’ 2 H2O(l) + O2(g)

Here, the oxygen of peroxide is in –1 state and it is oxidised to zero oxidation state in O2 and reduced to – 2 oxidation state in H2O.

Redox Couple

The oxidised and reduced forms of a substance taking part in an oxidation or reduction half reaction, e.g.

Zn2+/Zn (oxidation)

Cu2+/Cu (reduction)

Intramolecular Redox Reactions

Here, one element of a compound is oxidised while the other is reduced, e.g.

2 KClO3 β†’ 2 KCl + 3 O2

Here, oxygen is oxidised and chlorine is reduced

Oxidising Agents (Oxidants)

A species, which oxidises others but itself gets reduced

Acceptor of electron(s)

Reducing Agents (Reductants)

A species, which reduces others but itself gets oxidised

Donor of electron(s)

Oxidation Number

It is the residual charge (Β±) present on an atom in a compound when the shared electrons in a covalent bond belong entirely to a more electronegative element

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