OCR A-Level Chemistry A Organic Synthesis exam with solutions

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OCR A-Level Chemistry A Organic Synthesis exam with solutions

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2024/2025

Institution OCR A Level Chemistry

Course OCR A level chemistry

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OCR A-Level Chemistry A Organic Synthesis exam with solutions

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OCR A-Level Chemistry A Organic Synthesis
exam with solutions

Alkene + hydrogen /nickel catalyst/423K= - correct answer ✔alkane
| | | | | | | |

Alkene + bromine /room temperature= - correct answer ✔dihaloalkane
| | | | | | | |

Alkene + HCl(g/aq) /room temperature= - correct answer ✔haloalkane (mixed
| | | | | | | | |

products)
|

Alkene + H2O(g) /H3PO4= - correct answer ✔alcohol (mixed products)
| | | | | | | | |

Primary alcohol + 2[O] /excess K2Cr2O7/H2SO4/reflux= - correct answer
| | | | | | | |

✔carboxylic acid
| |

Primary alcohol + [O] /K2Cr2O7/H2SO4/distil= - correct answer ✔aldehyde
| | | | | | | |

Secondary alcohol + [O] /K2Cr2O7/H2SO4/reflux= - correct answer ✔ketone
| | | | | | | |

Alcohol + H3PO4 or H2SO4/reflux= - correct answer ✔alkene + H2O
| | | | | | | | | |

Alcohol + HBr /H2SO4/reflux= - correct answer ✔haloalkane + H2O
| | | | | | | | |

, Haloalkane + NaOH(aq)= - correct answer ✔alcohol + sodium halide
| | | | | | | | |

Haloalkane + H2O= - correct answer ✔alcohol + halide acid
| | | | | | | | |

Haloalkane + NH3= - correct answer ✔primary amine + halide ion
| | | | | | | | | |

Benzene + HNO3 /Conc. H2SO4/50C= - correct answer ✔nitrobenzene + H2O
| | | | | | | | | |

Benzene + 2HNO3 /Conc. H2SO4/70C= - correct answer ✔dinitrobenzene +
| | | | | | | | |

2H2O
|

Benzene + Br2 /FeBr3 or AlBr3/room temperature & pressure - correct answer
| | | | | | | | | | |

✔bromobenzene + HBr
| | |

Benzene + Cl2 /FeCl3 or AlCl3/room temperature & pressure - correct answer
| | | | | | | | | | |

✔chlorobenzene + HCl
| | |

Benzene + haloalkane /AlCl3= - correct answer ✔ethylbenzene + Hcl
| | | | | | | | |

Benzene + acyl chloride /AlCl3= - correct answer ✔aromatic ketone + Hcl
| | | | | | | | | | |

Phenol + NaOH= - correct answer ✔sodium phenoxide + H2O
| | | | | | | | |

Phenol + 3Br2 /room temperature= - correct answer ✔2,4,6-tribromophenol +
| | | | | | | | |

3HBr
|

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Uploaded on: January 27, 2025
Number of pages: 6
Written in: 2024/2025
Type: Exam (elaborations)
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