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Alok kumar
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Asked: 2021-12-16T04:15:24+00:00 In:

An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in test tube, the change obtained is that:

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Poll Results

12.5%[A] Light green solution changes to blue ( 1 voter )
37.5%[B] Green solution slowly turns brown ( 3 voters )
37.5%[C] Lower end of test tube become slightly warm ( 3 voters )
12.5%[D] Colourless gas with the smell of burning sulphur is observed ( 1 voter )
Based On 8 Votes

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We know that, when aluminium stipe kept immersed in freshly prepared ferrous sulphate – FeSO₄, the change in colour observed, the green solution slowly turns into brown.
Because Al is more reactive than Fe, it displaces iron from its sulphate solution and form aluminium sulphate which is responsible for brown colour.

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    1 Answer

    1. [B] Green solution slowly turns brown

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