Here is the 2nd Question with selected answers. Do share with us your thoughts on deriving to the answer.
2. Cu+ ions may be formed when
A) Cu 2+ ions are oxidised by Sulphur dioxide
B) Cu 2+ ions are reduced by copper
C) Cu is oxidised by nitric acid
D) Zinc is placed in copper sulphate solution
Come students – time to learn as you think & practice!