A) i-low, ii-rapid, iii-Kerosene
B) i-low, ii-spontaneous, iii-Kerosene
C) i-high, ii-rapid, iii- water
D) i-high, ii-spantaneous, iii-water
Correct Answer: B
Solution :
The minimum temperature at which a substance catches fire is called ignition temperature. The ignition temperature of sodium is very low. Hence, it catches fire easily at room temperature. It reacts vigorously with oxygen at room temperature. To prevent its spontaneous combustion, it is stored under kerosene. The correct answer is B.
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