Advertisements
Advertisements
प्रश्न
Complete the following ionic equation:
\[\ce{Cr2O^{2-}7 + 2OH^- ->}\]
उत्तर
\[\ce{Cr2O^{2-}7 + 2OH^- -> 2CrO^{2-}4 + H2O}\]
APPEARS IN
संबंधित प्रश्न
Give an example and suggest a reason for the following feature of the transition metal chemistry:
A transition metal exhibits the highest oxidation state in oxides and fluorides.
Give an example and suggest a reason for the following feature of the transition metal chemistry:
The highest oxidation state is exhibited in oxoanions of a metal.
Indicate the steps in the preparation of K2Cr2O7 from chromite ore.
\[\ce{KMnO4}\] acts as an oxidising agent in alkaline medium. When alkaline \[\ce{KMnO4}\] is treated with \[\ce{KI}\], iodide ion is oxidised to ______.
Why \[\ce{HCl}\] should not be used for potassium permanganate titrations?
What is the effect of pH on dichromate ion solution?
Complete the reaction mentioning all the products formed:
\[\ce{Cr2O^{2-}7 + 3H2S + 8H^+ ->}\]
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
Indicate the step in the preparation of K2Cr2O7 from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
