Which of the following reactions is/are redox reactions? You may select more tha

Question

Which of the following reactions is/are redox reactions?  You may select more than one reaction.

Pb(NO3)2(aq) + Ni(s) = Pb(s) + Ni(NO3)(aq)

Ag+(aq) + e = Ag(s)

HNO2(aq) + O3(g) = HNO3(aq) + O2(g)

NiCl2(aq) + K2S(aq) = 2KCl(aq) + NiS(s)

2HF(aq) + Na2CO3(aq) = 2NaF(aq) + H2O(l) + CO2(g)

HCl(aq) + AgNO3 (aq) = AgCl(s) + HNO3(aq)

Pb(NO3)2(aq) + Ni(s) = Pb(s) + Ni(NO3)(aq)

Ag+(aq) + e = Ag(s)

HNO2(aq) + O3(g) = HNO3(aq) + O2(g)

NiCl2(aq) + K2S(aq) = 2KCl(aq) + NiS(s)

2HF(aq) + Na2CO3(aq) = 2NaF(aq) + H2O(l) + CO2(g)

HCl(aq) + AgNO3 (aq) = AgCl(s) + HNO3(aq)

Explanation / Answer

1. Pb before is +2 and after is 0. Similarly Ni before 0 state and after +2. So, REDOX

2. Ag before +1 and after 0. REDOX

3. N changing satae so, REDOX

4. No change in oxidation state of any element. NOT REDOX

5. No change in oxidation state of any element. NOT REDOX

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.