Question

which of the following set is represent N n W ?

1. 1,2,3.........

2. 0,1,2,3,........

3. (0)

4.( )​

Answer 1

Answer:

2

Step-by-step explanation:

How many electrons are involved in the following redox reaction?

Cr2O7

2- + Fe2+ + C2O4

2- → Cr3+ + Fe3+ + CO2 (Unbalanced)

(1) 3

(2) 4

(3) 5

(4) 6