13. Organic Chemistry - Students Free Notes

Identify the type of the following compounds as an alcohol, aldehyde, or ketone:

(a) HCHO (Formaldehyde): Aldehyde It contains the –CHO (carbonyl) group attached to a hydrogen atom. (b) CH₃COCH₃ (Acetone): Ketone It contains the –CO (carbonyl) group attached to two alkyl groups. (c) CH₃CH₂OH (Ethanol): Alcohol It contains the –OH (hydroxyl) group attached to an alkyl chain. Related Questions: What do you mean by the term destructive … Read more

What is the name of the alkyl group obtained by removing an end hydrogen atom from:

(i) Propane: The alkyl group obtained by removing one hydrogen atom from propane (C₃H₈) is propyl (C₃H₇). (ii) Ethane: The alkyl group obtained by removing one hydrogen atom from ethane (C₂H₆) is ethyl (C₂H₅).   Related Questions: What is catenation? (ii) Define isomerism. Define a functional group. What is the difference between an alkane and … Read more

What is the name of the alkane having seven carbon atoms in the chain?

The alkane with seven carbon atoms in the chain is called heptane. Its molecular formula is C₇H₁₆. Related Questions: What is catenation? (ii) Define isomerism. Define a functional group. What is the difference between an alkane and an alkyl radical? What are hydrocarbons? What is the difference between saturated and unsaturated hydrocarbons? What is the … Read more

Identify the following compounds on the basis of functional groups they contain and encircle the functional group.

CH₂=CHCH₃: This is an alkene compound, as it contains a double bond (C=C). CH₃-CH₂-COOH: This is a carboxylic acid because it contains the –COOH (carboxyl) group. CH₃-OH: This is an alcohol because it contains the –OH (hydroxyl) group. CH₃-CH₂-O-CH₃: This is an ether, as it contains the –O– (oxygen) linkage between two alkyl groups. Related … Read more

List major commercial sources of alkanes.

Alkanes are primarily obtained from the following commercial sources: Natural Gas: A major source of methane and other alkanes. Petroleum: Through the distillation process, crude oil is separated into various fractions, including alkanes such as ethane, propane, butane, and others. Coal: Alkanes are also obtained by destructive distillation of coal, which produces various gases, including … Read more

List some general properties of organic compounds.

Some general properties of organic compounds are: Covalent Bonding: Organic compounds usually form covalent bonds between carbon atoms and other atoms like hydrogen, oxygen, nitrogen, etc. Non-Polar or Weakly Polar: Many organic compounds are non-polar or weakly polar due to their covalent bonds. Flammability: Most organic compounds are flammable and can burn in the presence … Read more

What do you mean by the term destructive distillation?

Destructive distillation is a process in which a substance is heated to a high temperature in the absence of air (or with limited oxygen), causing it to decompose into simpler substances. This method is used to break down complex organic compounds into simpler compounds, which are then collected and condensed. For example, coal is destructively … Read more

What is the significance of the double bond in alkenes?

The double bond in alkenes makes them reactive, as it can easily break to form new bonds. This reactivity is used in various chemical reactions, including addition reactions. Related Questions: What is catenation? (ii) Define isomerism. Define a functional group. What is the difference between an alkane and an alkyl radical? What are hydrocarbons? What … Read more

What is the difference between saturated and unsaturated hydrocarbons?

Saturated hydrocarbons, like alkanes, have single bonds between carbon atoms, whereas unsaturated hydrocarbons, like alkenes and alkynes, contain at least one double or triple bond between carbon atoms. Related Questions: What is catenation? (ii) Define isomerism. Define a functional group. What is the difference between an alkane and an alkyl radical? What are hydrocarbons? What … Read more