Answer:
B. Cu + AgNO3 → CuNO3 + Ag
C. 2NaBr + Cl2 → 2NaCl + Br2
D. F2 + 2NaBr → 2NaF + Br2
Explanation:
There are several types of reactions in chemistry, of which one of them is the SINGLE DISPLACEMENT REACTION. Single displacement reaction is that reaction in which only one element in a compound is displaced/replaced by another element.
The following reactions given in this question are examples of single displacement reactions;
- Cu + AgNO3 → CuNO3 + Ag
- 2NaBr + Cl2 → 2NaCl + Br2
- F2 + 2NaBr → 2NaF + Br2
* In the first reaction, silver (Ag) is displaced by copper (Cu)
* In the second reaction, bromine (Br) is displaced by chlorine (Cl)
* In the third reaction, bromine (Br) is displaced by fluorine (F)