Which of the following compounds is formed by addition of mineral acid to an aqueous solution of borax?
Boron oxide
Orthoboric acid
Metaboric acid
Pyroboric acid
Given below are two statements :
Statement $I$ : Boron is extremely hard indicating its high lattice energy
Statement $II$ : Boron has highest melting and boiling point compared to its other group members.
In the light of the above statements, choose the most appropriate answer from the options given below
In the metallurgy of aluminium, cryolite is mixed in the molten state because it
Write reactions to justify amphoteric nature of aluminium.
An aqueous solution of borax is
Moissan boron is