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Prateek Asked :

15-10-2021 Corrosion

Q. Which of the following metals results in the ignition in extreme cases?

A. Sodium
B. Magnesium
C. Niobium
D. Sodium, magnesium, and niobium

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Dapzoi Verified
Commented on 2021-10-15 11:28:58 (IST)
Answer: D

Explanation: If the rate of heat transfer from metal to surroundings is less than heat evolution from oxide formation then it increases the surface temperature of metals. This leads to the ignition of metals and it includes sodium, magnesium, and niobium.