Functional groups: Classification of organic compounds

Which functional groups are present in this molecule? A. Secondary amine, hydroxyl, alkoxy B. Tertiary amine, alcohol, ketone C. Tertiary amine, hydroxyl, alkoxy D. Secondary amine, alcohol, ketone

Which of these molecules are isomers of each other? I. Butanal II. 2-methylpropan-1-ol III. Butan-2-ol A. I and II only B. I and III only C. II and III only D. I, II and III

Which molecules exhibit cis-trans isomerism? I. Pent-2-ene II. 1,1-dichloroethene III. 1,2-dibromoethene A. I and II only B. I and III only C. II and III only D. I, II and III

Which compound could produce this mass spectrum? Mass lost (Mr) Possible neutral fragment lost 15 •CH3 18 H2O 28 CH2=CH2 or CO 29 •CH2CH3 or •CHO 45 •COOH A. Butanone B. Butanal C. Butan-1-ol D. Butan-2-ol

Each indicator contains more than one benzene ring. (i) State one functional group, other than the phenyl group, that is present in all three indicators. (ii) Deduce the colour of light absorbed by bromothymol blue in acidic conditions and by bromophenol blue…

(i) Determine the molecular formula and the empirical formula of cresolphthalein. (ii) A simplified infrared (IR) spectrum of cresolphthalein is shown below. State the bonds responsible for the absorptions labelled P, Q and R. Use section 20 of the data…

In a separate experiment, the students needed to separate a mixture of two miscible liquids, ethanol and pentan-1-ol. State the most suitable method of separation and the physical property on which it depends.

The mass spectrum of carbonyl dibromide is shown below. Bromine has two isotopes, $\ce{^{79}Br}$ and $\ce{^{81}Br}$, of almost equal abundance. (i) Explain the origin of the peaks that appear at m/z values smaller than those of the molecular ion. (ii) Deduce…

The structure of galantamine is shown below. (i) State the name of the functional group that contains the nitrogen atom. (ii) Outline the effect of this functional group on the pH of water in which galantamine is dissolved, giving the direction of the change…

State the IUPAC name of compound Y.