577 public questions tagged with this topic.
Phenol (C₆H₅OH) reacts with sodium metal to form sodium phenoxide (C₆H₅ONa) and hydrogen gas, showcasing its acidic nature.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
In CH₃CH₂CHClCH₂CH₃ , the Cl-bearing carbon (C₃) is bonded to C₂, Cl, C₄, and one H, so it has 1 hydrogen.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
Bond strength decreases as halogen size increases due to weaker overlap: CH₃F > CH₃Cl > CH₃Br > CH₃I .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
Bond length increases with the size of the halogen. Among F, Cl, Br, and I, iodine is the largest, so CH₃-I has the longest C-X bond.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
Bond length decreases with smaller halogen size. CH₃F has the shortest C-X bond due to fluorine's small atomic radius.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
In [Fe(H₂O)3Cl₃], 3 H₂O ligands each provide 1 O atom, totaling 3 oxygen atoms.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
[Fe(CN)4]2− (Fe₂+, d6) with 4 ligands is square planar (strong field CN−), using dsp2 hybridization.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
[Mn(CN)6]4− (Mn₂+, d5) with strong field CN− in an octahedral field is low spin, using inner d orbitals (d2sp3).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
[Ni(NH₃)6]2+ (Ni₂+, d8) with NH₃ in an octahedral field is high spin, using outer orbitals (sp3d2).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
Primary valence is the oxidation state. In [Fe(H₂O)6]SO₄, H₂O is neutral, SO₄₂− is −2, balanced by [Fe(H₂O)6]2+, so Fe is +2.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
[Fe(H₂O)6]2+ (Fe₂+, d6) is octahedral with weak field H₂O, forming a high-spin complex with outer orbitals (sp3d2).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Bonding - Valence Bond Theory and Hybridisation
Interstitial compounds are formed by small atoms (H, C, N) occupying voids in metal lattices. KMnO 4 is an ionic compound.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Preparation and Properties of Potassium Dichromate and Permanganate
