A water soluble unknown is disolved in water, and the pH of the resulting soluti

Question

A water soluble unknown is disolved in water, and the pH of the resulting solution is 5. 9. What would you do next? A water solution of a water-soluble unknown has a pH the same as water. The unknown gives no red color in a ceric nitrate test and no black precipitate or silver mirror in a Tollens' test. What functional group would you conclude was in the unknown? A student concludes that a water-soluble unknown contains an alcohol functional group and does chromic add test on sample. The color of the tested solution is green. How should the identity the functional group be reported?

Explanation / Answer

1) phenol or carboxylic acid

2) ketone

3) primary or secondary alcohol

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