Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ - decoded step-by-step.
Solve it the standard way once - then learn the shortcut.
Q · Classification of Elements Medium · 45s
Transition metals are characterized by:
TopicClassification of Elements
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Partly filled d-orbitals give variable oxidation states and color.
Final Answer: Option A - Incomplete d-subshells