Q41.The number of alkali metal(s), from Li, K, Cs, Rb having ionization enthalpy greater than 400 kJ mol−1 and forming stable super oxide is
What This Question Tests
This question tests the student's knowledge of the ionization enthalpy trend for alkali metals and the specific conditions under which they form stable superoxides. It requires a precise recall of properties to satisfy both conditions simultaneously.
Concepts Tested
📚 NCERT Sections This Tests
4.11 — Explain Giving Reasons:
Chemistry Class 11 · Chapter 4
4.11 Explain giving reasons: (i) Transition metals and many of their compounds show paramagnetic behaviour. (ii) The enthalpies of atomisation of the transition metals are high. (iii) The transition metals generally form coloured compounds. (iv) Transition metals and their many compounds act as good catalyst.
4.13 — How Is The Variability In Oxidation States Of Transition Metals Different From
Chemistry Class 11 · Chapter 4
4.13 How is the variability in oxidation states of transition metals different from that of the non transition metals? Illustrate with examples.
4.12 — What Are Interstitial Compounds? Why Are Such Compounds Well Known For
Chemistry Class 11 · Chapter 4
4.12 What are interstitial compounds? Why are such compounds well known for transition metals?
📋 Question Details
- Chapter
- s-block Elements
- Topic
- Properties of alkali metals
- Year
- 2023
- Shift
- 31 Jan Shift 2
- Q Number
- Q41
- Type
- Numerical
- NCERT Ref
- Class 11 Chemistry Ch 10: s-block Elements
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