Essential constituent of an amalgam is
Iron
An alkali metal
Silver
Mercury
$\mathrm{E}^{\circ}$ of $\mathrm{Cu}$ is $+0.34 \mathrm{~V}$ while that of $\mathrm{Zn}$ is $-0.76 \mathrm{~V}$. Explain.
Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?
Stainless steel is an alloy of iron with
Correct statement for $CeO_2$ is/are
$(1)$ It is Diamagnetic in nature
$(2)$ It is a good oxidising agen
$(3)$ It is colourless compound