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Nomenclature and General Principles — Flashcards

Telangana Open School (TOSS) · Class 12 · Chemistry

35 flashcards for Nomenclature and General Principles (Telangana Open School (TOSS) Class 12 Chemistry) to test yourself on key terms and facts.

53 questions35 flashcards4 concepts

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35 Flashcards·
General PrinciplesNomenclature
Card 1General Principles

What is catenation?

Answer

Catenation is the unique ability of carbon atoms to form long chains, rings, and networks by bonding with other carbon atoms. This property leads to the formation of a large number of organic compound…

Card 2General Principles

Define homologous series with an example.

Answer

A homologous series is a group of compounds where each member differs from the next by a –CH₂– group. They have similar chemical properties and a general formula. Example: Alkanes (CₙH₂ₙ₊₂) — methane …

Card 3Nomenclature

What is the IUPAC name of CH₃CH₂CH₂CH₃?

Answer

The compound has 4 carbon atoms in a straight chain and is saturated. Word root: But-, suffix: -ane. Therefore, the IUPAC name is butane.

Card 4Nomenclature

Name the compound: CH₃–CH=CH–CH₂–CH₂–CH₂–CH₂–CH₃

Answer

The longest chain has 8 carbon atoms with a double bond at C₂. Suffix: -ene. Word root: Oct-. Numbering from left gives lower number to double bond. IUPAC name: Oct-2-ene.

Card 5Nomenclature

What is the IUPAC name of CH₃C≡CH?

Answer

The compound has 3 carbon atoms with a triple bond at C₁. Suffix: -yne. Word root: Prop-. The triple bond gets lowest number. IUPAC name: Propyne.

Card 6Nomenclature

Name the compound: 4-Ethyl-5-methylhex-2-ene

Answer

Parent chain: Hexene (6 carbons, double bond at C₂). Substituents: Ethyl at C₄, methyl at C₅. Structure: CH₃–CH=CH–CH(C₂H₅)–CH(CH₃)–CH₃.

Card 7Nomenclature

Draw the structure of 2,3-dimethylbutane.

Answer

Parent chain: Butane (4 carbons). Methyl groups at C₂ and C₃. Structure: CH₃–CH(CH₃)–CH(CH₃)–CH₃.

Card 8Nomenclature

What is the IUPAC name of cyclopentene?

Answer

The compound is a cyclic alkene with 5 carbon atoms and one double bond. Prefix: cyclo-, suffix: -ene. IUPAC name: Cyclopentene.

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Frequently Asked Questions

What are the important topics in Nomenclature and General Principles for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Nomenclature and General Principles include Classification of Hydrocarbons, IUPAC Nomenclature of Organic Compounds, Types of Reactions and Bond Fission, Electronic Effects in Covalent Bonds. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How many flashcards are available for Nomenclature and General Principles?
There are 35 flashcards for Nomenclature and General Principles covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Nomenclature and General Principles for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 53 practice questions on Nomenclature and General Principles. Revise definitions regularly and use flashcards for quick recall before the exam.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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