Among the given substances, the substance which will solidify before the temperature reaches 0°C is benzene.
What is freezing point?
Freezing point of any liquid is that point at which the liquid will convert into solid state at the normal atmospheric pressure.
Among the given substances butane and nitrogen has freezing point less than 0°C, water has 0°C and benzene has more than 0°C. When we cool down the temperature of the container before the 0 degree celsiuc than the beaker in which benzene is present cools gradually.
Hence benzene will solidify before the temperature reaches 0°C.
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