MCQ
Which of the following is a redox-reaction ?
- ✓$2Na[Ag(CN)_2] + Zn \to Na_2[Zn(CN)_4] + 2Ag$
- B$BaO_2 + H_2SO_4 \to BaSO_4 + H_2O_2$
- C$N_2O_5 + H_2O \to 2HNO_3$
- D$AgNO_3 + KI \to AgI + KNO_3$
✓
Answer
Correct option: A.
$2Na[Ag(CN)_2] + Zn \to Na_2[Zn(CN)_4] + 2Ag$
a
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