A) ethanol
B) propanone
C) 2-butanol
D) ethanol
Correct Answer: D
Solution :
Ethanal gives both iodoform and Fehlings tests \[C{{H}_{3}}CHO+\underset{blue}{\mathop{2C{{u}^{2+}}}}\,+3O{{H}^{-}}\xrightarrow[\begin{smallmatrix} Fehling \\ \,\,\,\,test \end{smallmatrix}]{\Delta }C{{H}_{3}}CO{{O}^{-}}\] \[\underset{red\,ppt.}{\mathop{+2C{{u}^{+}}\downarrow }}\,+2{{H}_{2}}O\] \[C{{H}_{3}}CHO+3{{I}_{2}}+4NaOH\xrightarrow[\begin{smallmatrix} Iodoform \\ \,\,\,\,test \end{smallmatrix}]{\Delta }\underset{iodoform}{\mathop{C{{H}_{3}}I\downarrow }}\,\] \[+\text{ }HCOONa+3NaI+3{{H}_{2}}O\]
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