Question 1
Which of the following is an oxidation-reduction reaction?
◦ KOH + HNO
3 → H
2O + KNO
3◦ N
2 + O
2 → 2NO
◦ Al
2(SO
4)
3 + 6KOH → 2Al(OH)
3 + 3K
2SO
4◦ AgNO
3 + NaCl → AgCl + NaNO
3◦ CaCl
2 + Na
2SO
4 → CaSO
4 + 2NaCl
Question 2
What is oxidized and what is reduced in the following reaction?
2Al + 3Br
2 → 2AlBr
3 ◦ AlBr
3 is oxidized and Al is reduced.
◦ Al is reduced and Br
2 is oxidized.
◦ Al is oxidized and Br
2 is reduced.
◦ AlBr
3 is reduced and Br
2 is oxidized.
◦ AlBr
3 is reduced and Al is oxidized.