12.07.2015 Views

Science 30 January 1999 Grade 12 Diploma Examination

Science 30 January 1999 Grade 12 Diploma Examination

Science 30 January 1999 Grade 12 Diploma Examination

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Use the following information to answer the next question.Combustion of EthanolC 2 H 5 OH (l) + 3 O 2(g) 2 CO 2(g) + 3 H 2 O (g)32. Blended gasoline (E-85 ethanol) is a fuel containing 85% ethanol and 15%unleaded gasoline. The heat of combustion of ethanol isA. 857.4 kJ/molB. –151.7 kJ/molC. –<strong>12</strong>35.3 kJ/molD. –2299.4 kJ/molUse the following information to answer the next question.A Reaction at a RefineryH –H O H–=–C – C – C – OH + 3 H 2(g)––HHH –H H H–––C – C – C – H + 2 H 2O (g)–––HHHCompound X33. The functional groups present in Compound X make it possible to classifyCompound X as bothA. an ester and an alcoholB. a ketone and an alcoholC. an ester and a carboxylic acidD. a ketone and a carboxylic acid22

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!