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4 votes
Which of the following is most difficult to reduce?

O A. Cu2+
O B. Aut
C. Ni2+
D. Na+

2 Answers

2 votes
The answer is D. Na+
User HectorJ
by
4.9k points
4 votes

Answer:

D Na+

Step-by-step explanation:

due to shielding effect

User Sulabh Chaturvedi
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4.2k points