All of the following are properties of sodium.Which one is a physical property of sodium?
A) It's surface turns black when first exposed to air.
B) It is a solid at 25°C and changes to a liquid when heated to 98°C.
C) When placed in water it sizzles and a gas is formed.
D) When placed in contact with chlorine it forms a compound that melts at 801°C.
E) Sodium is never found as the pure metal in nature.
Correct Answer:
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