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Answer:
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Explanation:
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Explanation:
- This solution is copper sulphate (CuSO4). The iron nails dropped in the solution are responsible for the solution's colour change. Iron being more reactive than copper displaces it from CuSO4 and forms ferrous sulphate (FeSO4) and the displaced copper deposits on iron nail which is labelled in the figure.
- It is midnight. Convection currents are formed because of temperature difference and at night time, the wind flows from land to sea, that's why the flag is furling in the direction of sea.
- Answer is in the attachment given above.
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