Redox Reaction By Oxidation Number Method 01 Ques6
Question:
Which of the following redox reactions is correctly balanced using the oxidation number method?
Options:
A) $K_2Cr_2O_7 + 6FeSO_4 + 7H_2SO_4 \rightarrow Cr_2(SO_4)_3 + 3Fe_2(SO_4)_3 + 7H_2O$
B) $K_2Cr_2O_7 + 6FeCl_2 + 14HCl \rightarrow 2CrCl_3 + 6FeCl_3 + 7H_2O + KCl$
C) $K_2Cr_2O_7 + 3H_2O_2 + 8HCl \rightarrow 2CrCl_3 + 3O_2 + 7H_2O$
D) $K_2Cr_2O_7 + 4Mg + 4H_2SO_4 \rightarrow 2CrSO_4 + 2K_2SO_4 + MgSO_4$
Show Answer
Answer: a
Explanation:
A) Correct, this reaction is properly balanced in terms of atoms and charges adhering to the oxidation number method.
B) Incorrect, the products count and overall reaction balancing is incorrect.
C) Incorrect, improper balancing in amounts of products.
D) Incorrect, the balancing of the number of atoms, especially including magnesium, is not correct.
BETA
