Q. Which metal burn in air at high temperature with the evolution of much heat?
A) Cu
B) $Pb$
C) Hg
D) Al
Explanation
(d)
$Aluminium\$metal burn in air at high temperature. This reaction is highly exothermic
4A$l + 3O_{2}\ \longrightarrow 2Al_{2}O_{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.