AQA AS BIOLOGY 7401/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022 AQA AS BIOLOGY 7401/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022 AQA AS BIOLOGY 7401/2 Paper 2 Question Paper + Mark scheme [MERGED] June 2022

AQA GCSE ART AND DESIGN (Art, Craft and Design) Component 2 Externally set assignment 2 IB/ G/Jun18/8201/X Your work will be marked according to how well you have shown evidence of: • Developing ideas through investigations, demonstrating critical understanding of sources. • Refining work by exploring ideas, selecting and experimenting with appropriate media, materials, techniques and processes. • Recording ideas, observations and insights relevant to your intentions as work pr...

AQA Chemistry AS 2021 Paper 1 QP ALCOHOLS: Primary and secondary alcohols are identified using acidified potassium dichromate. It turns from orange to green if they are present. Tertiary alcohols are not oxidised and the potassium dichromate remains green. ALDEHYDES: METHOD 1- Tollens reagent is added to the solution being tested and is warmed gently. If an aldehyde is present, a silver mirror will form I the test tube. If not, the solution will remain colourless. METHOD 2- Fehlings solution...