Which of the following are amphoteric? A) Cu2+ B) Ni2+ C) Co2+ D) Zn2+ E) Sn2+

Question

Question

Which of the following are amphoteric?

A) Cu2+

B) Ni2+

C) Co2+

D) Zn2+

E) Sn2+

Answer 1

Answer #1

The metal ions which can react as both acid and base are termed as amphoteric metals.

From the given set of options the amphoteric metal ios are :- Cu²⁺(Copper ion), Zn²⁺(Zinc ion), Sn²⁺(Tin ion)

Answer 2

Similar Homework Help Questions

Prepare a separation scheme flowchart for Ni2+,Cu2+,Sn2+,Zn2+

Prepare a separation scheme flowchart for Ni2+,Cu2+,Sn2+,Zn2+
5. The reduction potentials for Ni2+ and Sn2+ are as follows: Ni2+ + 2e → Ni,...

5. The reduction potentials for Ni2+ and Sn2+ are as follows: Ni2+ + 2e → Ni, E= -0.231 V Sn2+ + 2e → Sn, & = -0.140 V Calculate the equilibrium constant at 25 °C for the reaction: Sn2+ + Ni = Sn + Ni2+ A) 3.6 x 1012 B) 35 C) 5.9 D) 8.3 x 1041 E) 1.2 x 10
Calculate the E°cell for the following reaction: Cu2+ (aq) + Ni (s) → Cu (s)...

Calculate the E°cell for the following reaction: Cu2+ (aq) + Ni (s) → Cu (s) + Ni2+ (aq) A) (-0.59 ± 0.01) V B) (-0.09 ± 0.01) V C) (0.59 ± 0.01) V D) (0.09 ± 0.01) V --------------------------------------------------------------------------------------------------------- What is the proper line notation for the following reaction? Cu (s) + 2Ag+ (aq) → Cu2+ (aq) + 2Ag (s) A) Cu2+ | Cu || Ag | Ag+ B) Ag+ | Ag || Cu | Cu2+ C) Cu |...

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The...

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.60molL−1 and 0.130 molL−1, respectively. Zn2+(aq)+2e−→Zn(s)E∘=−0.76V Ni2+(aq)+2e−→Ni(s)E∘=−0.23V Part A What is the initial cell potential? Part B What is the cell potential when the concentration of Ni2+ has fallen to 0.600 molL−1? Part C What are the concentrations of Ni2+ and Zn2+ when the cell potential falls to 0.45 V?
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The...

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.80 molL−1 and 0.130 molL−1, respectively. Zn2+(aq)+2e−→Zn(s)E∘=−0.76V Ni2+(aq)+2e−→Ni(s)E∘=−0.23V A) What is the cell potential when the concentration of Ni2+ has fallen to 0.600 molL−1? B) What are the concentrations of Ni2+ and Zn2+ when the cell potential falls to 0.45 V?
Calculate E for the following electrochemical cell at 25°C Cu|Cu2+(0.01M) || Zn2+(0.05M)]Zn Select one: a. -0.977V...

Calculate E for the following electrochemical cell at 25°C Cu|Cu2+(0.01M) || Zn2+(0.05M)]Zn Select one: a. -0.977V cb. -1.598V c. -1.080V d. -1.122V ce. -1.311V

Using the activity series, select all REDOX REACTIONS that should occur A) Mn(s) + Ni2+(aq) -->...

Using the activity series, select all REDOX REACTIONS that should occur A) Mn(s) + Ni2+(aq) --> Ni(s) + Mn2 (aq) B) 2Ag(s)+ Fe2+(aq) --> Fe(s) + 2Ag (aq) C) Ni(s) + Mn2t(aq) --> Mn(s) + Ni2 (aq) D) Sn(s) + Fe2+(aq) --> Fe(s) + Sn2 (aq) E) Zn(s) + Cu2 (aq)-> Cu(s) + Zn2 (aq) F) Fe(s)+Sn2 (aq) --> Sn(s) + Fe2 (aq)
A voltaic cell consists of a Zn/Zn2+ anode and a Ni/Ni2+ cathode at 25 ∘C. The...

A voltaic cell consists of a Zn/Zn2+ anode and a Ni/Ni2+ cathode at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.80 M and 0.120 M , respectively. The volume of half-cells is the same. Part A What is the concentrations of Ni2+ when the cell potential falls to 0.46 V ? Express your answer using one significant figure. Part B What is the cell potential when this voltaic cell is "dead"? Part C What is the concentration...
If in separate solutions of nitrates of Sn2 +, Zn2 + and Cd2 + we put...

If in separate solutions of nitrates of Sn2 +, Zn2 + and Cd2 + we put a coin of Ag (s) in each one it is expected that Ag (s) ... Zn2 + (ac) + 2e = Zn (s) E ° = -0.76V Sn2 + (ac) + 2e = Sn (s) E ° = -0.14V Cd2 + (ac) + 2e = Cd (s) E ° = -0.40V Ag + (ac) + e = Ag (s) E ° = + 0.80V...

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 °C. The...

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 °C. The initial concentrations of Ni2+ and Zn2+ are 1.00 M and 0.150 M respectively. a. What is the initial cell potential? b. What is the cell potential when the concentration of Ni2+ has fallen to 0.250 M? (Hint: What should the concentration of Zn2+ be if Ni2+ has fallen from its original concentration to its current concentration?)