What is the change in the oxidation number of chromium in the following? K2Cr2O7 s Cr2(SO4) 3
A) increase by three units
B) increase by four units
C) decrease by two units
D) decrease by three units
E) decrease by four units
Correct Answer:
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Q14: The CrO42- ion was involved in a
Q15: Which of the following involves oxidation?
A)Ba2+(aq)+
Q16: Which of the following involves reduction?
A)Ba2+(aq)+
Q17: Which of the following involves oxidation?
A)Ca2+(aq)+
Q18: Which of the following involves reduction?
A)Ca2+(aq)+
Q20: What is the change in the
Q21: What is the change in the
Q22: What is the change in the
Q23: What is the change in the
Q24: What is the change in the
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