Write a brief note on history of organic chemistry.
What is Homologous Series? Write characteristics of homologous series.
Write general formula of alkanes and how it helps to determine the molecular formula of other members? Write the molecular formulae of the following compounds using general formulae, 1) Alkane containing 2) Alkene containing 3) Alkyne containing 4) Alcohol containing (i) 4 carbon atoms (i) 3 carbon atoms (ii) 6 carbon atoms (ii) 4 carbon atoms (i) 3 carbon atoms (ii) 4 carbon atoms (i) 2 carbon atoms (ii) 3 carbon atoms gmos bellas
How organic compounds are represented by molecular formula, structural formula, condensed structural formula and dot and cross formula? Give the molecular formula, the structural formula and the condensed structural formula for pentane NBF 1. Give the molecular, structural and condensed structural formulas for (a) Butane (b) Hexane (c) Octane
Differentiate between saturated and unsaturated hydrocarbons. Identify saturated and unsaturated compounds from the following (CH-CH2-CH3 (CH-CH-CH2 1. What is the general formula for alkanes, and how does it differ from that of alkenes? 2. Can a hydrocarbon be both aromatic and aliphatic at the same time? Explain. 3. How does the presence of a double bond in alkenes affect their reactivity compared to 4. What is the significance of the term 'unsaturated' in the context of hydrocarbons? relatively inert alkanes, which only undergo substitution or combustion reactions.
1. What distinguishes a cyclic organic molecule from a straight-chained one? 2. How does a structural formula provide a clear representation of a molecule's 3. Draw the structural formula for ethanol (CH3CH2OH). 4. Identify whether CH3COOCH3 represents a straight-chained, branched or cyclic- molecule? 5. Explain the significance of branched molecule in organic chemistry. 6. Given the formula CH3(CH2)2CH3, name the organic compound.
1. What defines a saturated compound's molecular structure? 2. How are the carbon-carbon bonds characterized in saturated compounds? 3. Define an unsaturated compound's molecular structure. 4. What distinguishes an unsaturated compound from a saturated one? 5. In saturated compounds, what may vary in terms of carbon-carbon bonds? 6. Explain the difference between saturated and unsaturated compounds in terms of carbon-carbon bonds.
09: Explain the significance of functional groups in determining the chemical properties of organic compounds and provide examples of common functional groups. (Cantab Exercise Question) Differentiating different organic compounds on the basis of their functional groups. (NBE) Classify the following compound as alcohol, ether or phenol a) CH3CH2OCH2CH2 b) CH3CH2CH2OH c) C&HsOH d) C2H5OH Identify the following compounds as an aldehyde or a ketone or a carboxylic acid. 1) CH COCH, is a common solvent for organic materials such as fats, rubbers, plastic and varnishes. 2) CH3CH2CHO has a foul irritating odour. 3) CH COOH is present in vinegar and is used to flavor food and making a polymer called 2. Name one functional group in alcohols. 3. Which functional group is found in both aldehydes and ketones? 4. What functional group characterizes phenols? 5. Identify the functional group present in carboxylic acids.
Q10: Define and explain catenation.
Q11: Explain the concept of structural isomers and provide examples of isomers for a given molecular formula. 1. What are structural isomers? 2. How do butane and isobutane exemplify structural isomerism? 3. What differentiates 1-butene from 2-butene? 4. Why do structural isomers have different chemical and physical properties? 5. Can the position of a double bond in a molecule change its identity? Provide examples from C4H8 isomers? 6. What is the significance of the molecular formula in determining isomerism?