Question

The copper coin is dipped in blue coloured copper sulphate solution, the colour obtained after half an hour is(a) Reddish
(b) Brownish
(c) Colourless
(d) blue colour​

Answer 1

Answer:

Blue Colour

Explanation:

Both are same metal thus they do not react with each other. The colour of the solution remains the same, which is blue

Answer 2

The copper coin is dipped in blue coloured copper sulphate solution, the colour obtained after half an hour is (d) blue colour

Explanation:

Reddish:

• A red coin is defined as one with at least 95 percent red and up to 100 percent red surfaces. Collectors frequently pay a lot of money for an extra 1% or 5% of the original Red hue.
• Most collectors aspire to own these coins, and there is undoubtedly fierce rivalry in this attractive market.

Brownish:

• A "brown" coin is defined as one on which the majority of the coin's surface has interacted with the atmosphere to the point where the coin's surface is nearly entirely a chocolate brown hue.  

Blue colour:

• When a copper coin is immersed in a copper sulphate solution, the colour of the solution does not change. Because copper sulphate and copper coin share the same copper ion, no displacement reaction occurs.
• As a result, even after half an hour, the solution will be blue.