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Which of the following equations is balanced ? A 5 B i O 3 − ​ + 2 H + + M n 2 + → 5 B i 3 + + 7 H 2 ​ O + M n O 4 − ​ B 5 B i O 3 − ​ + 1 4 H + + 2 M n 2 + → 5 B i 3 + + 7 H 2 ​ O + 2 M n O 4 − ​ C 2 B i O 3 − ​ + 4 H + + M n 2 + → 2 B i 3 + + 2 H 2 ​ O + M n O 4 − ​ D 6 B i O 3 − ​ + 1 2 H + + 3 M n 2 + → 6 B i 3 + + 6 H 2 ​ O + 3 M n O 4 − ​

Which of the following equations is balanced ?

A

5BiO3+2H++Mn2+5Bi3++7H2O+MnO4

B

5BiO3+14H++2Mn2+5Bi3++7H2O+2MnO4

C

2BiO3+4H++Mn2+2Bi3++2H2O+MnO4

D

6BiO3+12H++3Mn2+6Bi3++6H2O+3MnO4

Grade:8

1 Answers

Omveer Singh
askIITians Faculty 52 Points
2 years ago

 

Here, the number of atoms of each type and charges on both sides (left and right of the equation) are same. So, the equation is balanced.
 

5 B i O 3 − ​ + 1 4 H + + 2 M n 2 + → 5 B i 3 + + 7 H 2 ​ O + 2 M n O 4 −

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