Embibe Experts Solutions for Chapter: d- and f- Block Elements, Exercise 1: AP EAPCET 2021 (19-Aug Forenoon)

A compound $\mathrm{A}$ is used in paints instead of salts of lead. Compound $\mathrm{A}$ is obtained when a white compound $\mathrm{B}$ is strongly heated. The compound $\mathrm{B}$ is insoluble in water but dissolves in $\mathrm{NaOH}$ solution, forming a solution of compound $\mathrm{C}$. The compound $\mathrm{A}$ on heating with coke gives a volatile metal $\mathrm{D}$ and a gas $\mathrm{E}$ which burns with a blue flame. Identify the possible species $\mathrm{D}$ and $\mathrm{C}$ can be respectively?

The magnetic moment of ${\mathrm{Fe}}^{2+}$ is $\mathrm{B}.\mathrm{M}.$

Which of the following is not arranged in the correct sequence?

Which among the following is colored?

Match the following?

Which among the following species acts as a self-indicator?

In the following reactions (i) ${\mathrm{MnO}}_2 + 4\mathrm{HCl}\to$and (ii) $2{\mathrm{KMnO}}_4 + 16\mathrm{HCl}\to$, the number of moles of chlorine gas released respectively are

A purple colored compound of Manganese $\left(\mathrm{X}\right)$ decomposes on heating to liberate oxygen and forms compounds of Manganese ( $\mathrm{Y}$ and $\mathrm{Z}$ ) compound $\mathrm{Z}$ reacts with $\mathrm{KOH}$ in presence of potassium nitrate to give compound $\mathrm{Y}$. Compounds $\mathrm{X},\mathrm{Y}$ and $\mathrm{Z}$ respectively are