Q40.The number of pentagons in C60 and trigons (triangles) in white phosphorus, are; (1) 12 and 3 (2) 20 and 4 (3) 20 and 3 (4) 12 and 4
What This Question Tests
This question directly tests the recall of specific structural features of C60 fullerene and white phosphorus (P4 molecule).
Concepts Tested
📚 NCERT Sections This Tests
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?
14.1 — In An N-Type Silicon, Which Of The Following Statement Is True:
Physics Class 12 · Chapter 14
14.1 In an n-type silicon, which of the following statement is true: (a) Electrons are majority carriers and trivalent atoms are the dopants. (b) Electrons are minority carriers and pentavalent atoms are the dopants. (c) Holes are minority carriers and pentavalent atoms are the dopants. (d) Holes are majority carriers and trivalent atoms are the dopants.
5.12 — Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 · Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
📋 Question Details
- Chapter
- p-block Elements
- Topic
- Allotropes of Carbon and Phosphorus
- Year
- 2019
- Shift
- 10 Apr Shift 2
- Q Number
- Q40
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 11: The p-Block Elements
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