In Goldschmidt aluminothermic process, thermite contains
$3$ parts of $A{l_2}{O_3}$ and $4$ parts of $Al$
$3$ parts of $F{e_2}{O_3}$ and $2$ parts of $Al$
$3$ parts of $F{e_2}{O_3}$ and $1$ part of $Al$
$1$ part of $F{e_2}{O_3}$ and $1$ part of $Al$
Complete the following chemical equations :
$Z + 3LiAl{H_4} \to X + 3LiF + 3Al{F_3}$
$X + 6{H_2}O \to Y + 6{H_2}$
$3X + 3{O_2}\xrightarrow{\Delta }{B_2}{O_3} + 3{H_2}O$
If $B-Cl$ bond has a dipole moment, explain why $BCl_3$ molecule has zero dipole moment.
Discuss the pattern of variation in the oxidation states of
$(i)$ $B$ to $Tl$ and $(ii)$ $C$ to $Pb$.
Conc. $HN{O_3}$
$BCl_3$ does not exist as dimer but $BH_3$ exist as dimer $(B_2H_6)$ becuase