Supondo-se que um circuito elétrico composto por uma lâmpada incandescente seja conectado a um líquido contido em um recipiente, qual dos compostos líquidos seria capaz de fazer a lâmpada acender?
A
Óleo vegetal.
B
Agua destilada.
C
Solução aquosa de sacarose.
D
Solução aquosa de leite de magnésia.
E
Solução aquosa de água oxigenada.
A resposta é a letra D, mas alguém pode me explicar por quê?
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