OCR Learning outcomes Additional guidance Synthesis and separation. Purification methods. Recrystallisation  is a purification technique used to separate a solid compound from impurities by exploiting differences in solubility. How it works Dissolve the impure solid in a hot solvent in which the desired compound is highly soluble at high tempe...

Organic Reaction pathways  OCRAQAEdexcel Aliphatic routes  Aromatic routes Learn the reagents and changes 

Quinoa is a complete protein, meaning that it contains all nine essential amino acids that our bodies cannot make on their own.

EdexcelOCRAQA Enter your text here ... Enter your text here ... Enter your text here ... Amino acid  Molecule A. This is glycine - the simplest of the amino acids. The systematic name is  2- aminoethanoic acid  Amine Molecule B. This is a simple aliphatic amine with two carbon atoms called ethylamine ( or ethanamine) ....

Diabetics need to test blood glucose levels regularly.

Carbonyl compounds all contain a  C=O double bond. This is usually formed when an alcohol is oxidised using an oxidizing agent such as acidified sodium dichromate.  The position of the C=O  bond determines whether the compound is an aldehyde or ketone OCREDEXCEL Reactions of carbonyl compounds Enter your text here...

EdexcelOCRAQA Production of alcohols Enter your text here ... Oxidation of alcohols Enter your text here ... Elimination from alcohols With phosphorus pentachlorideMaking HBrIodo alkanes Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Enter your text here ... Enter your te...

Turmeric contains the aromatic compound Curcumin

Intro image OCROCR 2EdexcelAQA Enter your text here ... Enter your text here ...  I had a dream!   This presentation outlines the way in which Kekule came to propose his model  for the structure of benzene. It also outlines the ways in which the kekule proposal does not adequately explain all the properties of the benzene molecu...

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OCR EDEXCEL Use this video to see how to compare the rates of hydrolysis for haloalakanes. What does it show? Can you explain the results. Nucleophilic substitution mechanism 

Limonene is an alkene which can be found in the peel of citrus fruits

Edexcel or is it???