General
✓✗Which of the following is the strongest acid?
- Phenol
- Ethanol
- p-Nitrophenol
- p-Cresol
General
✓✗Phenol and ethanol both react with
- aqueous NaOH
- sodium metal
- NaHCO3
- neutral FeCl3
General
✓✗Acid-catalysed hydration of 2-methylpropene gives
- butan-2-ol
- 2-methylpropan-1-ol
- butan-1-ol
- 2-methylpropan-2-ol
General
✓✗Kolbe’s reaction uses phenoxide ion rather than phenol because
- the phenoxide ion is more reactive towards electrophilic substitution
- CO2 reacts only with ions
- phenol is insoluble
- phenol is a stronger base
General
✓✗Which of the following ethers is cleaved by HI fastest?
- Methoxyethane
- Ethoxyethane
- Methoxymethane
- 2-Methoxy-2-methylpropane
General
✓✗When glycerol is treated with excess of HI, it produces
- propene
- glycerol triiodide
- allyl iodide
- 2-iodopropane
General
✓✗Phenol reacts with conc. H2SO4 at 373 K to give mainly
- o-hydroxybenzenesulphonic acid
- p-hydroxybenzenesulphonic acid
- picric acid
- benzenesulphonic acid
General
✓✗Ethanol is commercially obtained by the fermentation of
- methane
- sugars (molasses, sugarcane, fruits)
- ethene with ozone
- coal tar
General
✓✗In the cumene process, cumene is converted into cumene hydroperoxide by
- conc. HNO3
- acidified KMnO4
- K2Cr2O7
- air (O2)
General
✓✗Acid-catalysed hydration of propene gives mainly
- propan-1-ol
- propanal
- propan-2-ol
- propanone
General
✓✗When vapours of a secondary alcohol are passed over heated copper at 573 K, the product formed is
- an alkene
- an aldehyde
- a ketone
- a carboxylic acid
General
✓✗The alkene R−CH=CH2 reacts readily with B2H6 and the product on oxidation with alkaline hydrogen peroxide produces
- R−CH2−CH2−OH
- R−CO−CH3
- R−CH(OH)−CH2OH
- R−CH2−CHO
General
✓✗Ethers are relatively unreactive, but they are cleaved under drastic conditions by
- dilute alkalis
- excess of hydrogen halides
- oxidising agents at room temperature
- water
General
✓✗Which of the following phenols is the least acidic?
- p-Chlorophenol
- p-Methoxyphenol
- m-Nitrophenol
- p-Nitrophenol
General
✓✗Ethyl phenyl ether reacts with HBr to give
- bromobenzene and ethyl bromide
- bromobenzene and ethanol
- phenol and ethanol
- phenol and ethyl bromide