JEE Chemistry
Potassium Dichromate & Permanganate: JEE Questions & Solutions
15 previous-year JEE Chemistry questions on Potassium Dichromate & Permanganate, each with a worked step-by-step solution.
Previous-year questions
- 01On heating a mixture of common salt and K₂Cr₂O₇ in equal amount along with concentrated H₂SO₄ in a test tube, a gas is evolved. Formula of…MCQEasyJEE 2026
- 02Consider the following statements about manganate and permanganate ions. Identify the correct statements. A. The geometry of both manganate…MCQMediumJEE 2026
- 03Consider the following reactions: K₂Cr₂O₇ + 2 KOH → heat [A] [A] + H₂SO₄ → [B] + K₂SO₄ The products [A] and [B], respectively are:MCQEasyJEE 2025
- 04Preparation of potassium permanganate from MnO₂ involves two-step process in which the 1^st step is a reaction with KOH and KNO₃ to produce:MCQEasyJEE 2025
- 05The molar mass of the water insoluble product formed from the fusion of chromite ore FeCr₂O₄ with Na₂CO₃ in presence of O₂ is..... g mol⁻¹.NVAEasyJEE 2025
- 06Consider the following reactions A + NaCl (little amount) + H₂SO₄ → CrO₂Cl₂ + Side Products CrO₂Cl_2(vapour) + NaOH → B + NaCl + H₂O B + H⁺…NVAEasyJEE 2025
- 07NaCl reacts with conc. H₂SO₄ and K₂Cr₂O₇ to give reddish fumes (B), which react with NaOH to give yellow solution (C). (B) and (C)…MCQEasyJEE 2024
- 08KMnO₄ decomposes on heating at 513 K to form O₂ along with:MCQEasyJEE 2024
- 09Alkaline oxidative fusion of MnO₂ gives “A” which on electrolytic oxidation in alkaline solution produces B. A and B respectively are:MCQMediumJEE 2024
- 10A and B formed in the following reactions are: CrO₂Cl₂ + 4NaOH → A + 2NaCl + 2H₂O A + 2HCl + 2H₂O₂ → B + 3H₂OMCQEasyJEE 2024
- 11Identify correct statements from below: A. The chromate ion is square planar. B. Dichromates are generally prepared from chromates. C. The…MCQMediumJEE 2024
- 12K₂Cr₂O₇ paper acidified with dilute H₂SO₄ turns green when exposed to:MCQEasyJEE 2023
- 13KMnO4 oxidises I⁻ in acidic and neutral/faintly alkaline solution, respectively to:MCQMediumJEE 2023
- 14When Cu²⁺ ion is treated with KI, a white precipitate, X appears in solution. The solution is titrated with sodium thiosulphate, the…MCQMediumJEE 2023
- 15Element not present in Nessler’s reagent is:MCQEasyJEE 2023
Frequently asked questions
Our bank has 15 previous-year JEE Chemistry questions tagged to Potassium Dichromate & Permanganate, drawn from JEE papers between 2023 and 2026, including 2 from 2026 alone. Each comes with a full step-by-step solution.
Potassium Dichromate & Permanganate is rated Intermediate overall for JEE Chemistry. The PYQs on this page break down as 10 easy, 5 medium.
Of the 15 previous-year questions on Potassium Dichromate & Permanganate, 13 are multiple-choice (MCQ) and 2 are numerical-value (NVA) questions.
Based on recent paper analysis, Potassium Dichromate & Permanganate is worth about 1 mark in JEE Main. It sits in d- & f-Block Elements, a Class 12 Chemistry chapter.
More d- & f-Block Elements topics
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