Question:
An iron nail is dipped in copper sulphate solution. It is observed that —
AThe colour of the solution becomes red
BThe colour of the solution remain unchanged .
CThe colour of the solution turns to light green
DNone of these
Answer:
Question:
AThe colour of the solution becomes red
BThe colour of the solution remain unchanged .
CThe colour of the solution turns to light green
DNone of these
Answer: