NEET2019ChemistryRedox ReactionsActual
BrO ₃⁻ changes into Br ₂ in an acidic medium of a unbalanced equation. How many electron should be present on the balanced equation?
Options
- A10 electron in left
- B6 electron in left
- C3 electron in left
- D3 electron in left
Correct answer
A. 10 electron in left
Step-by-step solution
The equation when BrO ₃⁻ changes into Br ₂ in an acidic medium is as follows 2 BrO ₃⁻+12 H ⁺ Br ₂+6 H ₂ O Add 10 e ⁻ in LHS to balance the charge on both sides 2 BrO ₃⁻+10 e ⁺+12 H ⁺ Br ₂+6 H ₂ O .