Step 1: Understanding Lithium Alloys
Lithium forms lightweight alloys that are used in aerospace and defense applications.
Step 2: Choosing the correct metal
Among the given options, lithium forms an alloy with magnesium (Mg), which is used to make armor plates. Thus, the correct answer is Mg.
Identify the correct orders against the property mentioned:
A. H$_2$O $>$ NH$_3$ $>$ CHCl$_3$ - dipole moment
B. XeF$_4$ $>$ XeO$_3$ $>$ XeF$_2$ - number of lone pairs on central atom
C. O–H $>$ C–H $>$ N–O - bond length
D. N$_2$>O$_2$>H$_2$ - bond enthalpy
Choose the correct answer from the options given below: