When $Cu^{2+}$ ion is treated with $KI$, a white precipitate is formed. Explain the reaction with the help of chemical equation.
Which of the following imparts green colour to the glass
Stainless steel does not rust because
Which of the following statements are correct about $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ ?
$A$. They exhibit high enthalpy of atomization as the d-subshell is full.
$B$. $\mathrm{Zn}$ and $\mathrm{Cd}$ do not show variable oxidation state while $\mathrm{Hg}$ shows $+\mathrm{I}$ and + $II.$
$C$. Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are paramagnetic in nature.
$D$. $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are called soft metals.
Choose the most appropriate from the options given below:
Metal-metal bonding is more frequent in $4d$ or $5d$ series than in $3d$ series due to
What is the correct order of the following elements with respect to their density ?