Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202410 May 2024Morning ShiftChemistryRedox ReactionsActual

What is the oxidation number of carbon in K ₂ C ₂ O ₄ ?

Options

  1. A-2
  2. B-3
  3. C+3
  4. D+4

Correct answer

C. +3

Step-by-step solution

Let oxidation state of C be x in K ₂ C ₂ O ₄ . array ll & 2(+1)+2 x+4(-2)=0 & 2+2 x-8=0 & 2 x=6 & x=+3 array

Practice Redox Reactions on Quantrex Academy →

More from Redox Reactions

x moles of K₂ Cr₂ O₇ oxidises 1 mole of ferrous oxalate, in acidic medium. Hence 'x' is: 2026In the redox reaction, taking place in acidic medium: X MnO ₄^- (aq) + Y SO ₂(g) Mn ⁺²(aq) + HSO ₄^- (aq) , the ratio of X:Y in a stoichiometrically balanced equation will be 2026In the reaction, Cr ₂ O ₇²⁻ + 4 H ₂ O ₂ + 2 H ^+ 2 CrO ₅ + H ₂ O The change in oxidation state of Cr is: 2026What are the numbers of protons ( H ^+ ) and electrons ( e ^- ), respectively, required for the reduction of [ Cr ₂ O ₇]²⁻ to Cr ³⁺ under an aqueous acidic condition? 2026Given below are two statements. Statement-I: In H ₂ O ₂ , each oxygen atom is assigned an oxidation number of -1 , in RbO ₂ each oxygen atom is assigned an oxidation number of - 1 2026a C ₂ O ₄²⁻ + b MnO ₄^- + c H ^+ x Mn ²⁺ + y H ₂ O + z CO ₂ a and x respectively are 2026What is the number of electrons gained by Cl atom when n mole of ClO ₄^- is transformed into n mole of ClO ₂^- ion? 2026What is the oxidation number of Cl in HOClO ₂ ? 2026 Full Redox Reactions list All MHT CET PYQs