Explain ionization enthalpy and electro-negativity for elements of Boron family.
The $+1 -$ oxidation state in group $-13$ and $+2$ oxidation state in group $-14$ becomes more and more stable with increasing atomic number. Explain.
Acedic strength of Boron trihalide are in order of
Which of the following compound is formed in borax bead test?
Which of the following sublimes on heating?