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Preparation, properties and uses of K2Cr2O7 and KMnO4 Revision for JEE

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Revise Preparation, properties and uses of K2Cr2O7 and KMnO4 by covering every subtopic once, drilling formulas, then solving 10+ timed MCQs with full solutions.

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  1. 1.Core idea: Preparation, properties and uses of K2Cr2O7 and KMnO4
  2. 2.Relates to other subtopics in d and f-Block Elements
  3. 3.Transition metal properties
  4. 4.K2Cr2O7 and KMnO4 preparation
  5. 5.Master Preparation, properties and uses of K2Cr2O7 and KMnO4 definitions and standard results
  6. 6.Solve 20 timed MCQs for Preparation, properties and uses of K2Cr2O7 and KMnO4

Syllabus context

Part of d and f-Block Elements in JEE Main Chemistry.

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Q1ChemistryUnit 11: d and f-Block Elements
In the purification of zirconium by Van Arkel process which halogen is used?
Q2ChemistryUnit 11: d and f-Block Elements
Which of the following reagents is used to test the presence of SO2S O_{2} gas?
Q3ChemistryUnit 11: d and f-Block Elements
ACrO42−A C r O_{4}^{2-} solution turns from yellow to another color upon addition of acid. What is the another color?
Q4ChemistryUnit 11: d and f-Block Elements
In the dichromate anion Cr2O7C r_{2} O_{7}
Q5ChemistryUnit 11: d and f-Block Elements
Which represents correct comparison of the stability of ions?
Q6ChemistryUnit 11: d and f-Block Elements
What changes occur when acidified Cr2O72−C r_{2} O_{7}^{2-} ion reacts with H2O2H_{2} O_{2} solution in presence of ether solvent?
Q7ChemistryUnit 11: d and f-Block Elements
Assertion SO2\boldsymbol{S O}_{2} turns acidified K2Cr2O7\boldsymbol{K}_{2} \boldsymbol{C r}_{2} \boldsymbol{O}_{7} green Reason K2Cr2O7K_{2} C r_{2} O_{7} is reduced to Cr3+( green )C r^{3+}(\text { green }) salt by SO2S O_{2}
Q8ChemistryUnit 11: d and f-Block Elements
To an acidified dichromate solution, a pinch of Na2O2N a_{2} O_{2} and ether is added and shaken.What is observed?

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