Umiejętności z tego działu sprawdzają 33 zadania wzorowane na arkuszach IB z lat 2022–2026. Dział pojawia się w 25 z 54 arkuszy w bazie.
1-Bromobutane, CH3CH2CH2CH2Br, is used as a solvent and as a building block for other organic compounds. (i) Predict the organic compound produced from 1-bromobutane and hydroxide ions. (ii) Deduce the type of reaction in (i) and give a reason for your…
Reactions of halogenoalkanes with hydroxide ions are an example of nucleophilic substitution. Deduce the equation, showing the movement of electrons with curly arrows, for the reaction of 1-chloropropane with aqueous potassium hydroxide.
Which equation shows the first species acting as an electrophile? A. Br− + CH3CH2+ → CH3CH2Br B. H2O + H+ → H3O+ C. CN− + CH3Br → CH3CN + Br− D. AlCl3 + Cl− → AlCl4−
Which compound is most susceptible to attack by an electrophile? A. Butane, CH3CH2CH2CH3 B. 1-Chlorobutane, CH3CH2CH2CH2Cl C. But-2-ene, CH3CH=CHCH3 D. Cyclohexane, C6H12
What is the product of the reaction between hex-3-ene and steam, H2O(g)? A. Hexan-3-ol B. Hexan-1-ol C. Hexanal D. Hexan-3-one
Which of these reactions are nucleophilic substitutions? I. OH− + CH3CH2CH2Cl → CH3CH=CH2 + H2O + Cl− II. I− + CH3CH2Br → CH3CH2I + Br− III. CH3O− + CH3CH2Cl → CH3CH2OCH3 + Cl− A. I and II only B. I and III only C. II and III only D. I,…
The structure of galantamine is shown below. (i) State the type of structural formula shown. (ii) State the name of the functional group that contains the nitrogen atom. (iii) Outline the effect of this functional group on the pH of water in which galantamine…
Compound Y undergoes nucleophilic substitution with a hydroxide nucleophile. (i) Describe the movement of electron pairs during the reaction using curly arrows. (ii) Contrast homolytic and heterolytic fission of the C–Cl bond in compound Y. (iii) Explain,…
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) Outline why but-2-ene, unlike butane, readily undergoes this type of reaction. (iii) State the…
Which diagram correctly shows the heterolytic fission of the carbon-bromine bond in bromomethane? A. Diagram A B. Diagram B C. Diagram C D. Diagram D
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