Which of the following statements is not true about interstitial compounds?

What are alloys? Write about them.

The set of elements which obey the general electronic configuration $(n-1)d^{1-10}ns^2$ is

The general electronic configuration of transition elements is

Which of the following elements are not regarded as transition elements?

Consider $|x|$ as the difference in oxidation states of Mn in the highest manganese fluoride and the highest manganese oxide. The ions with $|x|$ number of unpaired electrons from the following are: $A$. $Sc^{3+}$ $B$. $Zn^{2+}$ $C$. $V^{2+}$ $D$. $Fe^{2+}$ $E$. $Co^{2+}$ Choose the correct answer from the options given below: