1063 public questions tagged with this topic.
Toluene ( C₆H₅CH₃ ) undergoes electrophilic substitution with Cl₂ and FeCl₃ , forming CH₃C₆H₄Cl (chlorotoluene, mainly para).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
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
SN₂ favors primary halides due to less steric hindrance. CH₃CH₂CH₂CH₂I (iodide) is most reactive due to the best leaving group.
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
Transition metals and their compounds are used as catalysts, pigments, and in alloy formation. While platinum is used as an inert electrode in many electrochemical setups, the option 'inert electrodes' may be considered not primary/general for most transition metals.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Lanthanoids are not used as structural building materials due to their softness and high reactivity.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Moles of glycerol = (10/92) ≈ 0.1087 mol . Mass of solvent = 200 g = 0.2 kg. Molality = (0.1087/0.2) ≈ 0.5435 mol/kg .
Ref: NCERT Class 12 Chemistry > Chapter 1: Solutions > Topic: Abnormal Molar Masses and van't Hoff Factor
Δ Tf = i · Kf · m . 1.116 = 2 × 1.86 × (moles/0.5) . 1.116 = 3.72 × (moles/0.5) , moles = (1.116 × 0.5/3.72) ≈ 0.15 . Mass = 0.15 × 58.5 = 8.775 g .
Ref: NCERT Class 12 Chemistry > Chapter 1: Solutions > Topic: Abnormal Molar Masses and van't Hoff Factor
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Directive Influence and Carcinogenicity and Uses
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Directive Influence and Carcinogenicity and Uses
