The molecular formula of felspar is
${K_2}O\,.\,A{l_2}{O_3}.\,6Si{O_2}$
${K_2}O\,.\,3A{l_2}{O_3}.\,6Si{O_2}$
$N{a_3}Al{F_6}$
$CaS{O_4}.\,2{H_2}O$
The hardest substance amongst the following is
Explain what happens when boric acid is heated.
Which match is not incorrect ?
Explain what happens when boric acid is heated.
Explain ionization enthalpy and electro-negativity for elements of Boron family.