Answer :

The balanced skeleton reactions are given below

Cr₂O₇²⁻(aq) +3Zn(s) +  14[tex]H^{+}[/tex](aq)  → 3Zn²⁺(aq) +2 Cr³⁺(aq) + 7[tex]H_{2}O[/tex](l)

The oxidising agent and  reducing agents are Cr₂O₇²⁻ and Zn.

The following are involved in an acidic medium's balancing redox reaction .

  1. The reaction should first be split into two half reactions
  2. Balance the atoms present in half reaction other than oxygen and hydrogen atoms .
  3. Add  [tex]H_{2}O[/tex] on that side where number of oxygen  atom is less to balance the oxygen atom .
  4. Add  [tex]H^{+}[/tex] on another side of in which water attached to make the hydrogen atom equal.
  5. Balance the charge by adding  [tex]e^{-}[/tex] .
  6. Now , add the two half reactions .

The species which reduces the other species in the redox reaction is called reducing agent . Similarly , the species which oxidize the other species in the redox reaction  is called reducing agent .

To learn more about reducing agents please click here ,

https://brainly.com/question/2890416

#SPJ4