IB Chemistry SL Functional Groups

Review IB Chemistry functional groups through organic formulas, homologous series, IUPAC names, structural isomers and spectroscopy evidence.

Exam points

identify functional groups such as hydroxyl, carbonyl, carboxyl, amino, ester or phenyl
name organic compounds and distinguish structural isomers from formulas or displayed structures

Covered syllabus points

3.2.1—Organic formulas 3.2.2—Functional groups 3.2.3—Homologous series 3.2.4—Physical property trends 3.2.5—IUPAC nomenclature 3.2.6—Structural isomers

[Maximum number: 2]

Strychnine, $\mathrm{C}_{21} \mathrm{H}_{22} \mathrm{~N}_{2} \mathrm{O}_{2}\left(M_{\mathrm{r}}=334.4\right)$ , is a white crystalline solid obtained from plants.

(a)

The formula of strychnine is:

Figure for Question (a) — IB Chemistry SL

[ 2 ]

(i)

State the type of structural formula shown.

[ 1 ]

(ii)

State the name of the functional group containing the nitrogen atom labelled "1".

[ 1 ]

[Maximum number: 2]

Alkenes, such as A (shown below), are important intermediates in the petrochemical industry because they undergo addition reactions to produce a wide variety of products, such as the conversion shown below.

Figure for Question 3.2 Functional groups: Organic compounds question 2 — IB Chemistry SL

(a)

Applying IUPAC rules, state the name of A.

[ 1 ]

(b)

In the gas phase, A reacts with hydrogen to form D.

Figure for Question (b) — IB Chemistry SL

[ 1 ]

(i)

State the homologous series to which D belongs.

[ 1 ]

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Covered syllabus points

3.2 Functional groups: Organic compounds question 1

Question (a)

Question (i)

Question (ii)

3.2 Functional groups: Organic compounds question 2

Question (a)

Question (b)

Question (i)