Advertisements
Advertisements
Question
Name a member of the lanthanoid series that is well-known to exhibit +2 oxidation state.
Advertisements
Solution
Europium (Eu) is well-known to exhibit +2 oxidation state due to its half filled f orbital in +2 oxidation state.
APPEARS IN
RELATED QUESTIONS
Complete the following equations : 2 Na2CrO4 + 2 H + →
Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with iron (II) ions? Write the ionic equation for the reaction.
Complete the following chemical equations :
Cu + H2SO4(conc.) →
E0 value for Mn3+ Mn2+ couple is much more positive than that for Cr3-/ Cr2-.
Potassium permanganate on heating at 513 K gives a product which is ______.
Complete the following ionic equation:
\[\ce{Cr2O^{2-}7 + 2OH^- ->}\]
Indicate the steps in the preparation of \[\ce{K2Cr2O2}\] from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chomite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
