An useful generalisation in chemistry is "like dissolves like". Based on this principle, which of the following pair of compounds will dissolved completely into each other?
Ethyl alcohol and water
Water and carbon tetrachloride
Carbon tetrachloride and sodium chloride
Kerosene and water
A
Water and carbon tetrachloride
B
Carbon tetrachloride and sodium chloride
C
Ethyl alcohol and water
D
Kerosene and water
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Solution
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Generally, organic and inorganic compounds do not dissolve into each other. But ethyl alcohol and water have hydrogen bonding hence, they completely dissolve each other, while other pairs does not have. One of them is organic and other is inorganic.
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