Redox Reactions MCQ

5/5 - (1 vote)

Redox Reactions MCQ. We covered all the Redox Reactions MCQ in this post for free so that you can practice well for the exam.

We have divided the complete NEET syllabus into several small posts on our website for your convenience. You will get their respective links in the related posts section provided below.

Related Posts:

MCQ on Redox Reactions for NEET Students

In redox titration involving iodine and sodium thiosulphate, 0.03 mol of iodine liberated requires a 1.0 M sodium thiosulphate solution. Given: Molar of sodium mass thiosulphate = 158 g/mol

(A) 20 mL

(B) 30 mL

(C) 40 mL

(D) 60 mL

Option d – 60 mL

The oxidation number of carbon in graphite is ………

(A) -2

(B) 0

(C) +2

(D) +4

Option b – 0

In how many of the following, the oxidation number of the transition metal is +3? VCl3, ZnSO4, Cr2O3, ZnS, CrCl3, MnO3, V₂O5

(A) 1

(B) 2

(C) 3

(D) 4

Option c – 3

A compound ‘X’ along with bromate ion are obtained as products when permanganate ion reacts with bromide ion in a basic medium. Identify the compound ‘X’.

(A) Manganese(V) oxide

(B) Manganese(II) oxide

(C) Manganese(IV) oxide

(D) Manganese(III) oxide

Option c – Manganese(IV) oxide

The oxidation number of oxygen is positive in which of the following compounds?

(A) H₂O₂

(B) Na₂O₂

(C) OF₂

(D) KO₂

Option c – OF₂

Which of the following are arranged in increasing order of oxidation state of carbon?





Option d – CH3OH, C2H2, CH2O, HCOOH

The oxidation state of hydrogen in AlH3 is ……..

(A) -1

(B) 0

(C) +1

(D) +2

Option a – -1

Which of the following is NOT a redox reaction? In fact, it is a double decomposition reaction.

(A) Cu₂S + 2FeO →2Cu + 2Fe + SO₂

(B) Zn +2AgCN →2Ag + Zn(CN)2

(C) AgNO3 + NaCl →AgCl + NaNO3

(D) Zn + H₂SO4 → ZnSO4 + H₂

Option c – AgNO3 + NaCl →AgCl + NaNO3

When sulphur dioxide is passed in an acidified K₂Cr₂O7 solution, the oxidation state of sulphur changes from ……….

(A) +4 to +6

(B) +6 to +4

(C) +4 to 0

(D) +4 to +2

Option a – +4 to +6

The oxidation number of Cr in chromyl chloride is the same as that of sulphur in ………

(A) SF4

(B) Na₂S₂O7

(C) H₂SO3

(D) H₂S4O6

Option b – Na₂S₂O7

The standard electrode potentials of four metals A, B, C, and D are -1.2 V, +0.5 V, -3.0 V, and +1.4 V respectively. The decreasing order of the electropositive character of these metals will be ……

(A) D>B> C> A

(B) D>B>A>C

(C) C>A>B>D

(D) A>B>C>D

Option c – C>A>B>D

The sum of oxidation states of all the atoms in KCIO3 is ………..

(A) -6

(B) -3

(C) 0

(D) +2

Option c – 0

In the process of combustion of methane, the change in oxidation number of carbon is from …….

(A) 0 to +4

(B) -2 to +4

(C) – 4 to +4

(D) +4 to 0

Option c – – 4 to +4

The oxidation state of the metal in Mg(BrO4)2 is ……..

(A) +1

(B) +2

(C) +3

(D) +4

Option b – +2

Which of the following reactions is an example of a redox reaction?

(A) Ca(OH)2 + 2HCl -> CaCl₂ + 2H₂O

(B) BaCl₂ + MgSO4 -> BaSO4 + MgCl₂

(C) 4BCl3 + 3LiAlH4 → 2B₂H6 + 3LICI + 3AICl3

(D) NaCl + KNO3 → NaNO3 + KCI

Option c – 4BCl3 + 3LiAlH4 → 2B₂H6 + 3LICI + 3AIC13

In the process of respiration, the oxidation number of carbon changes from ……….

(A) 0 to +4

(B) +2 to +4

(C) +2 to 0

(D) 0 to +2

Option a – 0 to +4

Consider the following metal salts: P-Cupric chloride Q-Aurous chloride R-Stannic chloride S-Ferric chloride Which of the following represents the CORRECT decreasing order of the oxidation number of the central metal ion?

(A) R>S>P>Q

(B) R>P>S>Q

(C) Q>P>S>R

(D) P>Q>S> R

Option a – R>S>P>Q

Which of the following has been arranged in decreasing order of oxidation state of nitrogen?

(A) NH3>N₂H4> NH₂OH > N3H

(B) NH₂OH> N3H> N₂H4> NH3

(C) NH3> N₂H4> N3H > NH₂OH

(D) N3H > NH₂OH > N₂H4> NH3

Option d – N3H > NH₂OH > N₂H4> NH3

Which of the following species can function both as oxidizing as well as reducing agents?

(A) Cl

(B) NO3


(D) MnO4

Option c – CIO

What is the oxidation number of carbon in potassium carbonate?

(A) +2

(B) +3

(C) +4

(D) +6

Option c – +4

Which of the following species does NOT show a disproportionation reaction?


(B) CIO₂

(C) CIO3

(D) CIO4

Option d – CIO4

The oxidation number of phosphorus is +3 in the compound ………

(A) H₂PO₂

(B) H3PO3

(C) H3PO4

(D) H4P₂O7

Option b – H3PO3

The name of TiO₂ according to the stock notation nomenclature method is ………

(A) titanium(II) oxide

(B) titanium(III) oxide

(C) titanium(IV) oxide

(D) titanium(VI) oxide

Option c – titanium(IV) oxide

In the reaction Zn + H₂SO4 ZnSO4 + H₂, which element is oxidized?

(A) Hydrogen

(B) Zinc

(C) Sulphur

(D) Oxygen

Option b – Zinc

The oxidation numbers of nitrogen and sodium in NaNO₂ are respectively ………

(A) +3, +1

(B) +5, +1

(C) +1, +3

(D) -3, +1

Option a – +3, +1

The reaction of white phosphorus with aqueous NaOH gives phosphine along with another phosphorus-containing compound. The reaction type and the oxidation states of phosphorus in phosphine and in the other product are respectively ……….

(A) combination reaction, -3 and -5

(B) decomposition reaction, +3 and +5

(C) disproportionation reaction, -3 and +1

(D) disproportionation reaction, -3 and +3

Option c – disproportionation reaction, -3 and +1

Which of the following statements is CORRECT for the following reaction? H₂O + Br₂ → HOBr + HBr

(A) Bromine only gets oxidized.

(B) Bromine only gets reduced.

(C) Bromine is neither oxidized nor reduced.

(D) Bromine gets simultaneously oxidized and reduced.

Option d – Bromine gets simultaneously oxidized and reduced.

We covered all the redox reactions mcq above in this post for free so that you can practice well for the exam.

Check out the latest MCQ content by visiting our mcqtube website homepage.

Also, check out:

Leave a Comment

Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.

Powered By
Best Wordpress Adblock Detecting Plugin | CHP Adblock