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Q.

The reaction in which metal oxide is reduced by Al is known as

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a

Rosenmud reduction

b

Silberschmidt reaction

c

Goldschmidt reaction

d

Bayer reaction

answer is C.

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Detailed Solution

We will perform many aluminothermic processes in this lab, which include oxidising aluminium (Al) powder with a metal oxide (MxOy).

2Al(s)+3yMxOy(s)Al2O3(s)+3xM(s)

In honour of their creator Hans Goldschmidt, these group of reactions is occasionally referred to as the Thermite Reaction or, more broadly, the Goldschmidt Reaction.

Typical oxidizers include Fe2O3, Cr2O3, and Mn3O4.

The tremendous exothermicity of these reactions makes them noteworthy.

Usually, the heat emitted is enough to turn the metal (M) into a molten state.

The Heat of Formation of Aluminum Oxide plays a major role in the Goldschmidt Reaction.

2Al(s)+32O2(g) Al2O3(s) ΔHf(298)=1675.7kJ/mol

 

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The reaction in which metal oxide is reduced by Al is known as