Q43.Which one of the following elemental forms is not present in the enamel of the teeth? (1) Ca2+ (2) P3+ (3) F− (4) P5+
What This Question Tests
This question tests knowledge about the chemical composition of tooth enamel, specifically identifying the common ionic forms of elements present. It requires recognizing that phosphorus in enamel is present as phosphate (P5+), not P3+.
Concepts Tested
📚 NCERT Sections This Tests
5.23 — Give The Oxidation State, D Orbital Occupation And Coordination Number Of
Chemistry Class 11 · Chapter 5
5.23 Give the oxidation state, d orbital occupation and coordination number of the central metal ion in the following complexes: (i) K3[Co(C2O4)3] (iii) (NH4)2[CoF4] (ii) cis-[CrCl2(en)2]Cl (iv) [Mn(H2O)6]SO4
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.
5.15 — Discuss The Nature Of Bonding In The Following Coordination Entities On The
Chemistry Class 11 · Chapter 5
5.15 Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory: (i) [Fe(CN)6] 4– (ii) [FeF6] 3– (iii) [Co(C2O4)3]3– (iv) [CoF6] 3–
📋 Question Details
- Chapter
- Chemistry in Everyday Life
- Topic
- Elements in biological systems
- Year
- 2022
- Shift
- 24 Jun Shift 1
- Q Number
- Q43
- Type
- Conceptual
- NCERT Ref
- Class 12 Chemistry Ch 16: Chemistry in Everyday Life
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