consider the following reactions of three elements A B and C and answer the following questions
a2 o3+2b gives b2o3+2a
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Answer:a) B is the most reactive element
b) C is the least reactive element
c) Oxidation-Reduction or Displacement Reactions are listed above.
Explanation:
In this reaction from an oxide compound of A is being displaced by B forming its oxide.
Oxidation of B
As B displaces A, then B is more reactive than A.
Reduction of A
ii)
In this reaction from the sulphate of C, C is being replaced by B forming its sulphate
As B displaces C, B is more reactive than C.
iii)
In this reaction from the oxide of C, C is being replaced by A forming its oxide.
As A displaces C, A is more reactive than C.
Oxidation of A and reduction of C takes place.
HENCE REACTIVITY ORDER: B > A > c
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