14. Hydrocarbons - Students Free Notes

Hydrocarbons

Related Questions: What are hydrocarbons? Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? What do you mean by dehydration reaction? Give one example. Draw structural formulas of an alkane, an alkene, and an alkyne containing five carbon atoms. What is the general formula for alkenes? How is ethene prepared from … Read more

Explain why a systematic method of naming chemical compounds is necessary?

A systematic method of naming chemical compounds ensures clarity and avoids confusion. It helps in the precise identification of compounds, facilitating effective communication among scientists, ensuring the correct structure and properties are understood, and avoiding ambiguities in practical applications.   Related Questions: Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? … Read more

List some industrial uses of ethene and ethyne

Ethene (Ethylene): Used in the production of polyethylene (a plastic). Used as a ripening agent for fruits. Used in the production of ethanol and other chemicals. Ethyne (Acetylene): Used as a fuel for welding and cutting metals. Used in the production of synthetic chemicals like acetic acid and acetaldehyde. Related Questions: Explain the different types … Read more

Write a chemical equation to show the preparation of ethyne from dehalogenation of 1,2-dihalide and a tetrahalide

Dehalogenation of 1,2-Dihalide: CH₂Cl-CH₂Cl → C₂H₂ + 2HCl (In the presence of Zn and heat) Dehalogenation of Tetrahalide: C₂Cl₄ → C₂H₂ + 2Cl₂ (In the presence of Zn and heat)   Related Questions: Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? What do you mean by dehydration reaction? Give one … Read more

Write a chemical equation to show the preparation of ethene from dehydration of an alcohol and dehydrohalogenation of alkyl halides:

Dehydration of Alcohol: C₂H₅OH → C₂H₄ + H₂O (In the presence of concentrated H₂SO₄) Dehydrohalogenation of Alkyl Halide: C₂H₅Cl → C₂H₄ + HCl (In the presence of alcoholic KOH) Related Questions: Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? What do you mean by dehydration reaction? Give one example. Draw … Read more

Write a chemical equation to show the preparation of an alkane from an alkene and an alkyne:

Alkene to Alkane: C₂H₄ + H₂ → C₂H₆ (Hydrogenation) Alkyne to Alkane: C₂H₂ + 2H₂ → C₂H₆ (Hydrogenation) Related Questions: Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? What do you mean by dehydration reaction? Give one example. Draw structural formulas of an alkane, an alkene, and an alkyne containing … Read more

What is the process of combustion in hydrocarbons? Explain complete and incomplete combustion with examples.

Combustion is a chemical reaction between a hydrocarbon and oxygen that releases energy in the form of heat and light. The process can be classified into complete combustion and incomplete combustion, depending on the amount of oxygen available during the reaction. 1. Complete Combustion: Complete combustion occurs when a hydrocarbon burns in the presence of … Read more

Describe the process of hydrogenation and its industrial applications.

Hydrogenation is a chemical reaction in which hydrogen (H₂) is added to a compound, typically an unsaturated hydrocarbon, to convert it into a saturated hydrocarbon. This process involves the addition of hydrogen atoms to the double or triple bonds of alkenes or alkynes, thus converting them into alkanes. Process: 1. Reaction with Alkenes: When an … Read more