A) A change in the partial pressure of oxygen in the air
B) A change in the crystalline structure of tin
C) An interaction with nitrogen of the air at very low to temperatures
D) An interaction with water vapour contained in the humid air
Correct Answer: B
Solution :
Grey tin is very brittle and easily crumbles down to a powder in very cold climates. \[\underset{\text{(Cubic)}}{\mathop{\text{Grey tin}}}\,\]⇌ \[\underset{\text{(Tetragonal)}}{\mathop{\text{White tin}}}\,\] The change of white tin to grey tin is accompanied by increase in volume. This is called tin disease or tin plague.
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