Advertisements
Advertisements
प्रश्न
Complete the following equations : 2 MnO2 + 4 KOH + O2 →
Advertisements
उत्तर
2 MnO2 + 4 KOH + O2 → 2 K2MnO4 + 2 H2O
संबंधित प्रश्न
Complete the following equations: Cr2O72- + 14H+ + 6I →
Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?
Indicate the steps in the preparation of KMnO4 from pyrolusite ore.
Complete the following chemical equations :
Cu + H2SO4(conc.) →
Zinc carbonate is precipitated from zinc sulphate solution by the addition of ___________.
On addition of small amount of \[\ce{KMnO4}\] to concentrated \[\ce{H2SO4}\], a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.
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 on heating at 513 K gives a product which is ______.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
