126 public questions tagged with this topic.
The longest chain with the -OH group has 4 carbons, named butane. The -OH is on the second carbon from the end nearest to it, so it is butan-2-ol.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
Pentane-2,4-diol (CH₃-CH(OH)-CH₂-CH(OH)-CH₃) has a 5-carbon chain, as counted from one end to the other: CH₃-CH-CH₂-CH-CH₃.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
Boiling points increase with molecular weight due to stronger London forces. The order is CH₃I (highest) > CH₃Br > CH₃Cl .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
Tertiary halides like (CH₃)3CCl ionize readily via SN₁ , forming AgCl precipitate instantly with AgNO₃ .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
Density increases with molecular weight for similar structures. CH₃CH₂CH₂I (1-iodopropane) has the highest molecular weight.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
Density increases with molecular weight for similar structures. CH₃I (iodomethane) has the highest density among CH₃X compounds.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
Ligand exchange between coordination spheres shows coordination isomerism.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Werner's Theory and Definitions - Ligands Coordination Number
SCN− is ambidentate, binding via S (thiocyanato) or N (isothiocyanato), allowing linkage isomerism when replaced or reoriented.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Optical Isomerism and Linkage Ionisation Solvate
Optical isomerism occurs in chiral complexes. [Co(en)3]3+ (octahedral, with 3 bidentate en ligands) lacks a plane of symmetry, forming non-superimposable mirror images (d and l).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Optical Isomerism and Linkage Ionisation Solvate
KMnO 4 is used as an oxidant, disinfectant, and in organic synthesis, but not as a reducing agent.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Preparation and Properties of Potassium Dichromate and Permanganate
Interstitial compounds are formed when small atoms (H, C, N) occupy voids in metal lattices (e.g., TiC).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Preparation and Properties of Potassium Dichromate and Permanganate
KMnO 4 is an oxidizing agent, not used as a reducing agent.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Preparation and Properties of Potassium Dichromate and Permanganate
