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प्रश्न
Complete the following equation:
\[\ce{2MnO4- + 6H+ + 5NO2- ->}\]
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उत्तर
\[\ce{2MnO4- + 6H+ + 5NO2- -> 2Mn^2+ + 5NO3- + 3H2O}\]
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संबंधित प्रश्न
When chromite ore FeCr2O4 is fused with NaOH in presence of air, a yellow-coloured compound (A) is obtained, which on acidification with dilute sulphuric acid gives a compound (B). Compound (B) on reaction with KCl forms an orange coloured crystalline compound (C).
(i) Write the formulae of the compounds (A), (B) and C.
(ii) Write one use of compound (C).
Complete the following equations : MnO4- + 4H+ + 3e- →
Give an example and suggest a reason for the following feature of the transition metal chemistry:
The lowest oxide of transition metal is basic, the highest is amphoteric/acidic.
The product formed upon heating methyl bromide with potassium tert-butoxide is
Why \[\ce{HCl}\] should not be used for potassium permanganate titrations?
What is the effect of pH on dichromate ion solution?
Indicate the steps in the preparation of \[\ce{K2Cr2O2}\] from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with oxalic acid? Write the ionic equation for the reaction.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
