Sea water does not freeze easily, as water from the sea contains:
A
plants
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B
fishes
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C
salts
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D
frogs
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Solution
The correct option is C salts When an ionic compound is present in water,it dissociates to give a vanthotf factor which is greater than one,According to colligative properties lowering of freezing point increases when vanthoff factor is greater than one.So the freezing point is lowered to a large extent in seas to high content of salt.