(a) What may be the possible oxidation state of the transition metals with the following d electronic configurations in

### Question Asked by a Student from EXXAMM.com Team

Q 2686678577.     (a) What may be the possible oxidation state of the transition metals with the following d electronic configurations in the ground state of their atoms:

3d^3 4s^2, 3d^5 4s^2 and 3d^6 4s^2. Indicate relative stability of oxidation states in each case.

(b) Write steps involved in the preparation of (i) Na_2CrO_4 from chromite ore and (ii) K_2MnO_4 from pyrolusite ore.
CBSE-12th 2008

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis