A copper coin was electroplated with Zn and t | vedclass

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(D) copper coin is electroplated with zinc $(Zn)$ and then heated at high temperature. During heating,zinc atoms diffuse into the copper lattice to fo

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golden

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(D) copper coin is electroplated with zinc $(Zn)$ and then heated at high temperature. During heating,zinc atoms diffuse into the copper lattice to form an alloy. The resulting alloy is brass,which has a characteristic golden colour. This occurs because the zinc migrates through the copper to form the $\alpha$-form of brass alloy (where the percentage of $Cu > 65 \%$ and $Zn $Zn + Cu \xrightarrow{\Delta} 	ext{Brass (Golden colour)}$. Thus,the correct option is $(D)$.

$I. \ Zn^{2+}$	$(i) \ d^8 \ \text{configuration}$
$II. \ Cu^{2+}$	$(ii) \ \text{Colourless}$
$III. \ Ni^{2+}$	$(iii) \ \mu = 1.73 \ \text{BM}$

$A$ copper coin was electroplated with $Zn$ and then heated at high temperature until there is a change in colour. What will be the resulting colour?

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Which of the following electronic configurations belongs to the $d$-block elements?

Elements after atomic number $103$ have been discovered. If an element with atomic number $106$ is considered,which of the following electronic configurations will it possess?

If the $IUPAC$ name of an element is "unununium",then the correct statement regarding the element is:

Match the following:
$I. \ Zn^{2+}$ $(i) \ d^8 \ \text{configuration}$
$II. \ Cu^{2+}$ $(ii) \ \text{Colourless}$
$III. \ Ni^{2+}$ $(iii) \ \mu = 1.73 \ \text{BM}$

Why do the transition elements exhibit higher enthalpies of atomisation?

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