Question

Four labelled solution A,B,C,D along with Radish -Browni Dark Grey Blue,silver,white which has aluminium strip?

Answer 1

Answer:

silver white is aluminium strip

Answer 2

Correct question:

Four labelled solution A,B,C,D along with Radish-Browni, Dark Grey,Blue, Silver, White. Which has Alluminium strip.A Students puts four big iron nails in four different test tube with ZnSO , Al2(SO4)3, FeSO4, coating on iron nail well appear?

Answer:

• Al displaces Fe from salt solution - Al more reactive than Fe
• Al displaces 2n - Al more reactive
• Al displaces Cu - Al more reactive
• Al - Al2(SO4)3 - no change
• Al - Fes04 - pale green colour disappear(2Al + FeSO4 gives Al2(SO4)3 + 3Fe)
• Al - ZnSO4 - No change in colour ( 2Al + 32nso4 gives Al2(SO4)3 + 32n)
• Al - CuSO4 - 2Al + 3CuSO4 gives 3Cu + Al2(SO4)3 (Blue colour disappears & become colourless)

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