21 questions in Organic chemistry at Form 5 · BGCSE
Most triedMost missedNewest- The general formula of the alkanes is…
- Which reagent shows that a hydrocarbon is unsaturated?
- Ethanol can be made by…
- Crude oil is separated into fractions by…
- Study the reaction scheme showing reactions of different substances: starch is hydrolysed by dilute hydrochloric acid to glucose solution; yeast conv…
- A man is working inside an enclosed well with a petrol generator running in order to power a lamp to provide light.
- A hydrocarbon has a molecular formula C₅H₁₂. The equation shows the reaction: C₅H₁₂ → C₃H₆ + C₂H₆. C₃H₆ undergoes addition polymerisation to form a m…
- State the conditions necessary for the production of ethanol by addition of steam to ethene.
- Ethanoic acid, CH₃COOH, can be formed by the oxidation of ethanol, C₂H₅OH, using acidified potassium dichromate.
- Ethanol reacts with ethanoic acid to form an ester of the structure CH₃COOCH₂CH₃.
- Linalool is an unsaturated organic compound found in the seeds of a coriander plant. Its structural formula is shown.
- One of the isomers of butanol, C₄H₉OH, is shown (butan-1-ol). This isomer can be produced from the reaction of the alkene X with steam.
- The rate of reaction between alkene X and steam is increased by a catalyst. Butanol may be oxidised by oxygen, forming butanoic acid.
- Compound X is a hydrocarbon. Compound X will react with steam in the presence of a catalyst. The product of this reaction is ethanol. Compound X has …
- Ethanol can be oxidised to ethanoic acid by warming with a solution of an oxidising agent in the presence of sulphuric acid.
- Carbon forms many organic compounds which fall into various homologous series.
- The diagram shows how ethanol was prepared from water and sugar solution (with yeast); the gas produced is bubbled through water containing Universal…
- Tetrachloromethane, CCl₄, is a colourless liquid formed when a hydrocarbon Y reacts with chlorine.
- The synthetic condensation polymer nylon can be represented using the simplified structure shown.
- During the production of traditional beer, glucose is converted to ethanol and carbon dioxide: C₆H₁₂O₆ → (enzymes) 2C₂H₅OH + 2CO₂. (Ar: C 12, H 1, O …
- The simplified diagram shows the structure of terylene. Proteins are also polymers.