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AQA AS Level Biology Paper 1 2020 Mark scheme
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AQA AS Level Biology Paper 1 2020 
Mark scheme. Heat with acid and neutralise; 
2. Heat with Benedict's (solution); 
3. Red precipitate/colour; 
3 
Accept boil/water bath 
for heat 
Accept named alkali 
for neutralise 
1. Accept named 
examples, eg HCl, 
NaHCO3 
3. Accept other 
colours eg orange/ 
brown/green 
TOTAL 8 
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