JEE Main Chemistry · The d- and f-Block Elements
Acid-Base Character of Oxides
Acid-Base Character of Oxides (The d- and f-Block Elements) was asked 5 times in 5 JEE Main shifts, 2017–2025, out of the 42 shifts Lumi analysed.
- Times asked
- 5
- in 5 shifts
- Years
- 2017–2025
- Usual format
- Single correct
- Multi-step
- Pattern
- Frequent
- repeats across shifts
How it is asked
- Count acidic oxides plus primary valency
- Nature of oxide of deduced metal ion
Difficulty
Easy 0Medium 5Hard 0
Where it sits
Chapter: The d- and f-Block Elements. Topic: d-Block Elements, 51 questions over 25 ideas.
Other repeat ideas in this topic
Every time it came
All 5 questions
Newest first, each with its options and official answer.
- 4 Apr 2025, Shift 2 · Q59'X' is the number of electrons in orbitals of the most stable complex ion among ,…MediumSingle correct
- 7 Apr 2025, Shift 1 · Q61The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion ()…MediumSingle correct
- 7 Apr 2025, Shift 2 · Q61'X' is the number of acidic oxides among , , , and .…MediumSingle correct
- 31 Jan 2024, Shift 2 · Q69Choose the correct statements from the following A. is an oil at room temperature B. reacts with acid…MediumOther
- 2 Apr 2017 (offline) · Q47In the following reactions, ZnO is respectively acting as a/an : (a) (b)…MediumSingle correct