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11.7. Carboxylic acids
A subsection of Chemistry, 0620, through 11. Organic chemistry
Listing 10 of 101 questions
The structure of malic acid is shown. C C H O O H H O C H C H O O H On the structure draw a circle around the alcohol functional group. Deduce the formula of malicacid to show the number of carbon, hydrogen and oxygen atoms. When malicacid is heated it forms compoundF. The structure of compoundF is shown. C C H O O H C C H O O H Explain why compoundF is described as unsaturated. CompoundF can form polymers. State the meaning of the term polymer. State the name of the polymer formed when ethene is polymerised. Ethanoic acid is a carboxylic acid. Describe the observations made when dilute ethanoicacid reacts with: magnesium litmus solution.  The graph shows how the pH changes when dilute ethanoicacid is added slowly to aqueous sodiumhydroxide. volume of dilute ethanoic acid added / cm3 pH Deduce the pH of the aqueous sodiumhydroxide before the addition of dilute ethanoicacid.  pH = Deduce the volume of dilute ethanoicacid added when the pH is neutral.  cm3 
0620_s21_qp_31
THEORY
2021
Paper 3, Variant 1
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Questions Discovered
101