498 public questions tagged with this topic.
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
Explanation extracted from page source.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
Butane (C₄H₁₀), a saturated alkane, has 10 hydrogens, the maximum for 4 carbons, compared to unsaturated hydrocarbons like butene.
Ref: NCERT Class 11 Chemistry > Chapter 9: Hydrocarbons > Topic: Aromatic Hydrocarbons - Electrophilic Substitution Reactions
s-character: sp (50%) > sp² (33%) > sp³ (25%). CH₃C≡CH has an sp-hybridized carbon in the triple bond.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Qualitative and Quantitative Analysis - Lassaigne Test and Estimation
Simple distillation is used for liquids with boiling point differences > 25°C, like benzene (80°C) and toluene (110°C).
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
Crystallization uses differential solubility (e.g., ethanol) to dissolve one solid and recrystallize it, leaving the insoluble one behind, ideal when melting points are irrelevant.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
Crystallization relies on melting point or solubility differences, ineffective here. Chromatography exploits Rf differences, making it suitable.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
Fractional distillation separates miscible liquids with boiling points differing by less than 25°C using a fractionating column.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
Sublimation separates based on sublimation temperature differences, effective when solubility is identical but one solid sublimes and the other does not.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
