In the purification of impure samples of ethyl ethanoate synthesized by esterification; concentrated sodium trioxocarbonate (IV) solution is used to remove
A. water B. basic impurities C. acidic impurities D. ethoxyethane Correct Answer: Option C – acidic impurities
Which of the following are structural isomers?
A. propanoic acid and propan-1, 2-diol B. Propanal and propanone C. Ethanoic acid and propanoic acid D. Ethan-1, 2-diol and ethanoic acid Correct Answer: Option B – Propanal and propanone
The decolourization of purple colour of tetraoxomanganate (VII) ion is a test for?
A. alkenes B. alkanols C. alkanals D. alkanes Correct Answer: Option A – alkenes
The enzymes responsible for converting sucrose into two simple isomeric sugars is?
A. maltase B. amylase C. invertase D. lactase Correct Answer: Option C – invertase
What will happen if an aluminium spoon is used to stir a solution of iron (II) trioxonitrates (V)?
A. The spoon will be oxidized while the iron (II) ions will be reduced to the metal B. The spoon will increase in size C. The spoon will be reduced while the iron (II) ions will be oxidized D. The spoon will be reduced Correct Answer: Option A – The spoon will...Products
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