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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
one year 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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