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^a Irish-medium exams are only available in Northern Ireland, from the CCEA exam board. ^b Welsh-medium exams are only available in Wales, from the WJEC exam board. The General Certificate of Secondary Education ( GCSE ) is an academic qualification in a range of subjects taken in England , Wales , and Northern Ireland , having been introduced ...
This property reflects a weakened bond to hydrogen, usually O−H but sometimes N−H or C−H. This behavior is important because these H • donors serve as antioxidants in biology and in commerce. Illustrative is α-tocopherol . The tocopherol radical itself is insufficiently stable for isolation, but the parent molecule is a highly ...
In recent years, the Nobel Prize in Chemistry has drawn criticism from chemists who feel that the prize is more frequently awarded to non-chemists than to chemists. [27] In the 30 years leading up to 2012, the Nobel Prize in Chemistry was awarded ten times for work classified as biochemistry or molecular biology, and once to a materials scientist.