मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

KMnOX4 acts as an oxidising agent in alkaline medium. When alkaline KMnOX4 is treated with KI, iodide ion is oxidised to ______.

Advertisements
Advertisements

प्रश्न

\[\ce{KMnO4}\] acts as an oxidising agent in alkaline medium. When alkaline \[\ce{KMnO4}\]  is treated with \[\ce{KI}\], iodide ion is oxidised to ______.

पर्याय

  • \[\ce{I2}\]

  • \[\ce{IO^-}\]

  • \[\ce{IO^-3}\]

  • \[\ce{IO^-4}\]

MCQ
रिकाम्या जागा भरा
Advertisements

उत्तर

\[\ce{KMnO4}\] acts as an oxidising agent in alkaline medium. When alkaline \[\ce{KMnO4}\]  is treated with \[\ce{KI}\], iodide ion is oxidised to \[\ce{IO^-}\].

Explanation:

\[\ce{2KMnO4 + KI + H2O -> 2KOH + 2MnO2 + KIO3}\]

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: The d-and f-Block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १०८]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 8 The d-and f-Block Elements
Multiple Choice Questions (Type - I) | Q 16 | पृष्ठ १०८

संबंधित प्रश्‍न

Complete the following equations:


Complete the following equations: Cr2O72- + 14H+ + 6I →


Complete the following equations : 2 MnO2 + 4 KOH + O2 →


Complete the following equations : 2 Na2CrO4 + 2 H + →​


Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?


Complete the following equations:

`2MnO_4^(-)+16H^++5S^(2-)rarr`


Complete the following chemical equations :

Cu + H2SO4(conc.) →


Name a member of the lanthanoid series that is well-known to exhibit +2 oxidation state.


Account for the following : 
Manganese shows maximum number of oxidation states in 3d series. 


 Write the ionic equation showing the oxidation of Fe(II) salt by acidified dichromate solutions. 


Which of the following reactions are disproportionation reactions?

(a) \[\ce{Cu^{+} -> Cu^{2+} + Cu}\]

(b) \[\ce{3MnO^{-}4 + 4H^{+} -> 2MnO^{-}4 + MnO2 + 2H2O}\]

(c) \[\ce{2KMnO4 -> K2MnO4 + MnO2 + O2}\]

(d) \[\ce{2MnO^{-}4 + 3Mn^{2+} + 2H2O -> 5MnO2 + 4H^{+}}\]


Generally transition elements and their salts are coloured due to the presence of unpaired electrons in metal ions. Which of the following compounds are coloured?

(i) \[\ce{KMnO4}\]

(ii) \[\ce{Ce(SO4)2}\]

(iii) \[\ce{TiCl}\]

(iv) \[\ce{Cu2 Cl2}\]


Potassium permanganate acts as an oxidant in neutral, alkaline as well as acidic media. The final products obtained from it in the three conditions are, respectively.


Why \[\ce{HCl}\] should not be used for potassium permanganate titrations?


The oxidation state of manganese in the product obtained in a reaction of potassium permanganate and hydrogen peroxide in a basic medium is ______. 


Potassium permanganate on heating at 513 K gives a product which is ______.


Which of the following ions will have a magnetic moment value of 1.73 BM.

\[\ce{Sc^3+, Ti^3+, Ti^2+, Cu^2+, Zn^2+}\]


Indicate the step in the preparation of K2Cr2O7 from chromite ore.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×