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प्रश्न
On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution ______.
विकल्प
turns blue, and a grey substance is deposited on the copper coin.
turns colourless and a grey substance is deposited on the copper coin
turns colourless and a reddish–brown substance is deposited on the copper coin.
remains green with no change in the copper coin.
उत्तर
On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution remains green with no change in the copper coin.
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