Q26 of 9701_s07_qp_1

Question 26

Question 26 of 40

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No letter options?

Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.

A 1, 2 and 3 are correct

B 1 and 2 only are correct

C 2 and 3 only are correct

D 1 only is correct

Topics Tested

16. Hydroxy compounds

16.1. Alcohols

deduce the presence of a CH\(_3\)CH(OH)- group in an alcohol, CH\(_3\)CH(OH)-R, from its reaction with alkaline I\(_2\)(aq) to form a yellow precipitate of tri-lodomethane and an ion, \( RCO_2^-\)

22. Analytical techniques

22.2. Mass spectrometry

deduce the number of carbon atoms, n, in a compound using the \([M + 1]^+\) peak and the formula \(n = rac{100 imes ext{abundance of } [M + 1]^+ ext{ion}}{1.1 imes ext{abundance of } M^+ ext{ion}}\)

13. An introduction to AS...

13.1. Formulas, functional groups a...

understand and use systematic nomenclature of simple aliphatic organic molecules with functional groups detailed in the table on pages 29 and 30, up to six carbon atoms (six plus six for esters, straight chains only for esters and nitriles)