Alcohols Exam Questions – Improved Practice, Study Guide & Revision Notes
Which statement is correct about the production and use of ethanol as a biofuel? (1)
A Biofuel ethanol is produced by the fermentation of glucose in the presence of yeast and air
B Biofuel ethanol is purified by fractional distillation
C No carbon dioxide is released when biofuel ethanol is burned
D Biofuel ethanol burns with cleaner flame than ethanol made by hydration of ethene - ANS
✔✔B
Which compound reacts to form a ketone when warmed with an acidified solution of potassium
dichromate (VI)? (1)
A CH3CH2CH2OH
B (CH3)2CHOH
C CH3CH2CHO
D (CH3)2CHCOOH - ANS ✔✔B
Which compound can be oxidised to form (CH3)2CHCOCH3? (1)
A 2-methylpropan-1-ol
B 2,2-dimethylpropanol
C 2-methylbutan-2-ol
D 3-methylbutan-2-ol - ANS ✔✔D
State the purpose of anti-bumping granules (1) - ANS ✔✔To prevent vigorous boiling
Explain why pentan-2-ol has a higher boiling point than pent-1-ene (3) - ANS ✔✔Intermolecular
forces stronger in pentan-2-ol
Pent-1-ene only has Van der Waals' forces
Which statement is correct about the production and use of ethanol as a biofuel? (1)
A Biofuel ethanol is produced by the fermentation of glucose in the presence of yeast and air
B Biofuel ethanol is purified by fractional distillation
C No carbon dioxide is released when biofuel ethanol is burned
D Biofuel ethanol burns with cleaner flame than ethanol made by hydration of ethene - ANS
✔✔B
Which compound reacts to form a ketone when warmed with an acidified solution of potassium
dichromate (VI)? (1)
A CH3CH2CH2OH
B (CH3)2CHOH
C CH3CH2CHO
D (CH3)2CHCOOH - ANS ✔✔B
Which compound can be oxidised to form (CH3)2CHCOCH3? (1)
A 2-methylpropan-1-ol
B 2,2-dimethylpropanol
C 2-methylbutan-2-ol
D 3-methylbutan-2-ol - ANS ✔✔D
State the purpose of anti-bumping granules (1) - ANS ✔✔To prevent vigorous boiling
Explain why pentan-2-ol has a higher boiling point than pent-1-ene (3) - ANS ✔✔Intermolecular
forces stronger in pentan-2-ol
Pent-1-ene only has Van der Waals' forces
