Some Basic Principles Of Organic Chemistry Question 233

Question: Consider the following reactions at 1000C . Zn(s)+12O2(g)ZnO(g);,ΔGo=360,kJ/mol C(s)+12O2(g)CO(g);,ΔGo=400,kJ/mol Choose the correct statement at 1000C .

Options:

A) Zinc can be oxidized by CO

B) Zinc oxide can be reduced by C

C) Both statements [a] and [b] are true

D) Both statements [a] and [b] are false

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Answer:

Correct Answer: B

Solution:

Carbon is the suitable reducing agent for zinc oxide at 1000C as ΔGCOoΔGZnOo is negative.

ΔGCOoΔGZnOo=,400(360)=,40 KJ/mol.



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