freshly prepared aqueous solutions of zinc sulphate and iron sulphate respectively appear: a.colourless and blue
b.blue and pale green
c.colourless and pale green
d.pale green and colourless
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blue and pale green
SukhdeepSingh:
thanx again
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Hey there so here's ur answer.....
Metals can be arranged on the basis of relative reactivity. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals.In reactivity series, the most reactive metal (K) is placed at the top of the series while the least reactive metal (Au) is placed at the bottom.A more reactive metal can displace a less reactive metal from its salt solution or compounds.Hydrogen which is a non-metal is also placed in reactivity series.Metals which lie above hydrogen in reactivity series are more reactive than hydrogen. Therefore, these metals can displace hydrogen from its compounds like acids and water.Metals lying below hydrogen in reactivity series are less reactive than hydrogen. These metals cannot displace hydrogen from acids and water.
Metals can be arranged on the basis of relative reactivity. The arrangement of metals in a vertical column in order of their decreasing reactivity downwards is called the reactivity series of metals.In reactivity series, the most reactive metal (K) is placed at the top of the series while the least reactive metal (Au) is placed at the bottom.A more reactive metal can displace a less reactive metal from its salt solution or compounds.Hydrogen which is a non-metal is also placed in reactivity series.Metals which lie above hydrogen in reactivity series are more reactive than hydrogen. Therefore, these metals can displace hydrogen from its compounds like acids and water.Metals lying below hydrogen in reactivity series are less reactive than hydrogen. These metals cannot displace hydrogen from acids and water.
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