試題詳解

19. Pentane can be distinguished from ethyl ether by the following test:
(A) Only ether liberates hydrogen when sodium is added.
(B) Only ether dissolves in concentrated sulfuric acid.
(C) Only ether gives a positive iodoform test.
(D) Only ether is reduced by sodium borohydride.
(E) Only ether is oxidized by aqueous dichromate.