Propanone, $$$\mathrm{CH}_{3} \mathrm{COCH}_{3}$$$, is an important organic reagent. Fig. 4.1 shows some reactions of propanone and its derivatives. Fig. 4.1 Reaction 3 is a reduction reaction. (i) Construct an equation to represent reaction 3. Use $$$[\mathrm{H}]$$$ to represent one atom of hydrogen from the reducing agent. ................................................................................................................................. (ii) Name C. .................................................................................................................................

Chemistry

IGCSE&ALevel

CAIE

Exam No：9701_w24_qp_21 Year：2024 Question No：4(c)

Answer:

Knowledge points:

13.1.1 define the term hydrocarbon as a compound made up of C and H atoms only

13.1.2 understand that alkanes are simple hydrocarbons with no functional group

13.1.3 understand that the compounds in the table on page 26 and 27 contain a functional group which dictates their physical and chemical properties

13.1.4 interpret and use the general, structural, displayed and skeletal formulae of the classes of compound stated in the table on page 26 and 27

13.1.5 understand and use systematic nomenclature of simple aliphatic organic molecules with functional groups detailed in the table on page 26 and 27, up to six carbon atoms (six plus six for esters, straight chains only for esters and nitriles)

13.1.6 deduce the molecular and/or empirical formula of a compound, given its structural, displayed or skeletal formula

13.2.1.1 homologous series

13.2.1.2 saturated and unsaturated

13.2.1.3 homolytic and heterolytic fission

13.2.1.4 free radical, initiation, propagation, termination (the use of arrows to show movement of single electrons is not required)

13.2.1.5 nucleophile, electrophile, nucleophilic, electrophilic

13.2.1.6 addition, substitution, elimination, hydrolysis, condensation

13.2.1.7 oxidation and reduction (in equations for organic redox reactions, the symbol [O] can be used to represent one atom of oxygen from an oxidising agent and the symbol [H] one atom of hydrogen from a reducing agent)

13.2.2.1 free-radical substitution

13.2.2.2 electrophilic addition

13.2.2.3 nucleophilic substitution

13.2.2.4 nucleophilic addition (in organic reaction mechanisms, the use of curly arrows to represent movement of electron pairs is expected; the arrow should begin at a bond or a lone pair of electrons)

Answer:

Knowledge points:

Solution:

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