18 Questions
What is a common property of inorganic compounds regarding solubility in water?
Insoluble
Which type of bonding is usually found in organic compounds?
Covalent
Which category of compounds is known for being flammable?
Organic compounds
What is the main purpose of using plastics from synthetic organic compounds?
Packaging
What is the condensed formula for Poly (ethene)?
(CH2CH2)n
Which type of formula provides a more detailed structure of a compound compared to empirical formula?
Structural formula
What is the main reason for the presence of a vast number of organic compounds in nature?
Catenation
Which pair of elements can also form strong bonds similar to carbon?
Boron and Silicon
Which type of compound has molecules containing carbon as a major component?
Organic compound
What is the term used for a more simplified version of a molecular formula showing the ratio of elements present in a compound?
Empirical formula
Which type of formula provides a detailed arrangement of atoms within a molecule, including bond types and connectivity?
Structural formula
What kind of compounds are Methane, Ethane, and Ethene examples of?
Hydrocarbons
What does the molecular formula of a compound represent?
The actual number of atoms of each element in a molecule
In organic chemistry, what does the empirical formula indicate?
The simplest ratio of atoms of each element in a molecule
Which type of formula shows all the atoms in the bonds as lines?
Bond-line formula
Which type of formula provides a shorthand way of writing the molecular formula?
Condensed formula
What is the main difference between molecular and empirical formulas?
Molecular formula shows all atoms in bonds, while empirical shows the simplest ratio
What is represented by the structural formula of an organic compound?
All atoms in the bonds as lines
Study Notes
Formula of Organic Compounds
- Molecules of organic compounds can be represented by different types of formulas: Molecular formula, Empirical formula, Structural formula, Condensed formula, and Bond-line formula.
- Molecular formula: Actual number of atoms of each element in a molecule (e.g. Glucose: C6H12O6).
- Empirical formula: Simplest ratio of atoms of each element in a molecule (e.g. Glucose: CH2O).
- Structural formula: Shows all atoms in the molecule and bonds between them (e.g. Propane).
- Condensed formula: Shorthand way of writing molecular formula (e.g. CH3CH2CH3).
- Bond-line formula: Represents structure between carbon-carbon bonds (e.g. CH3CH2CH2CH3).
Classifications of Organic Compounds
- Organic compounds can be classified into two categories: Naturally Occurring Organic Compounds (e.g. Proteins, Fats and Oils, Vitamins) and Synthetic Organic Compounds (e.g. Plastics, Medicines and Drugs, Pesticides).
Properties of Organic Compounds
- Properties of organic compounds differ from inorganic compounds: Bonding with molecules (covalent), Forces between molecules (weak), Normal physical state (gases, liquids or low-melting-point solids), Flammability (often flammable), Solubility in water (insoluble), and Conductivity (non-conductor).
Why is Organic Chemistry Special?
- Catenation is the reason for the presence of the vast number of organic compounds in nature.
- Carbon-carbon bonds are strong, allowing long chains or rings of carbon atoms to form.
- Carbon is unique in forming bonds to itself and with many other elements, including hydrogen and strongly electron-attracting elements.
What is an Organic Compound?
- An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon.
- Carbon is a major component of all organic compounds, including carbohydrates, lipids, proteins, and nucleic acids.
This quiz covers different types of formulas used in organic chemistry including molecular formula, empirical formula, structural formula, and condensed formula. It also discusses the significance of each type of formula in representing the structure of organic compounds.
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