Nomenclature Of Organic Compounds And Isomerism — Flashcards
Kerala Board · Class 10 · Chemistry
24 flashcards for Nomenclature Of Organic Compounds And Isomerism (Kerala Board Class 10 Chemistry) to test yourself on key terms and facts.
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What is the IUPAC name for the compound CH₃-CH₂-CH₂-CH₂-CH₃?
Answer
Pentane Explanation: This is a straight-chain alkane with 5 carbon atoms. The word root is 'pent' (for 5 carbons) and suffix is 'ane' (for saturated hydrocarbon). No branching or functional groups ar…
Name the compound: CH₃-CH(CH₃)-CH₂-CH₃
Answer
2-Methylbutane Step-by-step naming: 1. Main chain has 4 carbons (butane) 2. CH₃ branch at position 2 3. Branch is methyl group 4. Format: position-branch name-main chain name…
What are the key rules for numbering carbon atoms in branched alkanes?
Answer
1. Choose the longest carbon chain as main chain 2. Number from the end that gives branches the lowest position numbers 3. If same position from both ends, choose the end giving second branch lower nu…
Name the compound: CH₃-CH₂-CH=CH-CH₃
Answer
Pent-2-ene Explanation: 1. 5 carbon atoms = pent 2. Double bond between C2 and C3 3. Numbering gives double bond lowest position (2) 4. Suffix 'ene' for alkene Format: word root + position + ene…
What is the IUPAC name for CH₃-C≡C-CH₂-CH₃?
Answer
Pent-2-yne Explanation: 1. 5 carbon atoms = pent 2. Triple bond starts at position 2 3. Suffix 'yne' for alkyne 4. Number to give triple bond lowest position…
Define functional group and give three examples.
Answer
Functional Group: An atom or group of atoms bonded to carbon that determines the characteristic chemical and physical properties of an organic compound. Examples: 1. Hydroxyl group (-OH) - found in a…
How do you name alcohols using IUPAC nomenclature?
Answer
Alcohol Naming Rules: 1. Replace 'e' of alkane with 'ol' 2. Number carbon chain to give -OH lowest position 3. Include position number before 'ol' for chains >2 carbons Example: CH₃-CH₂-CH₂-OH = Prop…
Name the compound: CH₃-CH₂-COOH
Answer
Propanoic acid Explanation: 1. 3 carbon atoms including carboxyl carbon = propane 2. -COOH is carboxyl functional group 3. Replace 'e' with 'oic acid' 4. Propane - e + oic acid = Propanoic acid This…
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Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
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