Zadanie 16
Which set contains compounds that all belong to one homologous series? A. CH3CHO, CH3COCH3, CH3CH2CHO B. CH3COOH, CH3CH2COOH, CH3(CH2)2COOH C. CH3CH2NH2, CH3CH2NHCH3, CH3CH2CH2NH2 D.…
Homologous series and general formulas
Define a homologous series and write the general formula for alkanes, alkenes, alkynes, halogenoalkanes, alcohols, aldehydes, ketones, carboxylic acids, ethers, amines, amides and esters, recognising members of each series from their structures.
Tę umiejętność sprawdza 18 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 18 Otwórz w wyszukiwarce z filtrami
Zadanie 8c
But-2-ene and other alkenes serve as starting materials for a wide range of compounds. (i) Predict the product formed when but-2-ene reacts with bromine. (ii) Describe how this reaction proceeds at the mechanistic level, drawing curly arrows for each…
- Tabela do uzupełnienia
Zadanie 3e
A compound used to make polymers, hexanedioic acid, can be produced by a series of reactions starting from cyclohexane. (i) Deduce how reactant A is related to hex-1-ene. (ii) For the C=O functional group present in intermediate C, state its structural…
- Tabela do uzupełnienia
- Materiał graficzny
Zadanie 32
Which compounds belong to the same homologous series? A. CH3CH2COOH, CH3COOH, CH3CH2CH2COOH B. CH3COCH3, CH3CH2CHO, CH3CH2COCH3 C. CH3CH2OH, CH3CHO, CH3COOH D. CH3CH2Cl, CH2=CHCl,…
Zadanie 34
Which compound is the organic product when CH3CH2COOH and CH3CH2CH(OH)CH3 are heated together in the presence of concentrated sulfuric acid? A. CH3CH2COCH(CH3)CH2CH3 B. CH3CH2CH(CH3)COOCH2CH3 C. CH3CH2COOCH(CH3)CH2CH3 D.…
Zadanie 5g
3-Methylbutanoic acid reacts with propan-1-ol, CH3CH2CH2OH, to form an organic product and water. Deduce the structural formula and the empirical formula of the organic product.
- Materiał graficzny
Zadanie 3a
Halogenoalkanes form a homologous series. (i) Outline the meaning of homologous series. (ii) State the preferred IUPAC name of each of the two compounds shown. (iii) State which of the two compounds contains a chiral carbon atom and identify that carbon atom…
- Materiał graficzny
Zadanie 3c
(i) Identify the type of reaction that takes place in step 1. (ii) Sketch the mechanism of the reaction in step 1, using curly arrows to show the movement of electron pairs. (iii) Identify the products formed from the reaction of propan-1-ol and propanoic acid…
Zadanie 6c
Propanoic acid reacts with methanol to produce an ester. (i) Draw the full structural formula of the organic product. (ii) Predict the number of signals, and their splitting patterns, in the 1H NMR spectrum of this ester. (iii) The chemical shifts in…
Zadanie 1a
Propanoic acid, CH3CH2COOH, is the next member of the series. Outline two characteristics that make ethanoic acid and propanoic acid members of the same homologous series.
Zadanie 1a
Outline the meaning of the term “homologous series”, with reference to the carboxylic acids.
Zadanie 3a
State the name of the reagent that is heated with ethanoic acid to form this ester.
Zadanie 3d
State the homologous series to which CH3COOCH3 belongs.
Zadanie 3a
State the name of the reagent that is heated with propanoic acid to form this ester.
Zadanie 3d
State the class of organic compounds to which CH3CH2COOCH3 belongs.
Zadanie 8b
(i) State two features that show that ethene and propene are members of the same homologous series. (ii) The mass spectrum of pentane is shown. Suggest the species responsible for peak R. Use section 22 of the data booklet.
- Materiał graficzny
Zadanie 33
Which compounds are members of the same homologous series? A. Methanol, methanal, methanoic acid B. Ethane, ethene, ethyne C. Butan-1-ol, butan-2-ol, 2-methylpropan-2-ol D. Methanal, ethanal, propanal
Zadanie 34
Which set of formulas is a homologous series? A. CH4, C2H4, C3H4 B. C2H6, C3H6, C4H6 C. C3H8, C3H6, C3H4 D. C2H4, C3H6, C4H8