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 · Acids, Bases and SaltsMedium · 45s
Pick the correct match:
TopicAcids, Bases and Salts
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.
Hydrochloric acid: HCl; Sulphuric acid: H₂SO₄; Nitric acid: HNO₃.
Final Answer: Option D — None of these