Answer and explain it properly Which of the following are oxidation-reduction reactions? I. PCl 3 ( l ) + Cl 2 (g) PCl 5 (

Answer and explain it properly Which of the following are oxidation-reduction reactions? I.    PCl 3 ( l ) + Cl 2 (g)  PCl 5 ( l ) II. Cu (s) + 2 AgNO 3 (aq)  Cu(NO 3 ) 2 (aq) + 2 Ag (s) III. H 2 CO 3 (aq) + 2 LiOH (aq)  Li 2 CO 3 (aq) + 2 H 2 O ( l ) IV. FeCl 2 (aq) + 2 NaOH (aq)  Fe(OH) 2 (s) + 2 NaCl (aq) Select one: a. IV b. I, II, and III c. I and II d. III