Short Answer Type
Long Answer TypeExplain structures of diborane. Write the structures of diborane and explain the nature of bonding in it ?
Short Answer TypeA certain salt X, gives the following results:
It aqueous solution is alkaline to litmus.
A certain salt X, gives the following results:
It swells up to a glassy material Y on strong heating.
A certain salt X, gives the following results:
When conc. H2SO4 is added to a hot solution of X, white crystals of an acid Z separate out.
What are boric acids?
Boric acid a weakly acid crystalline compound derived from borax used as a mild antiseptic and in the manufacture of heat-resistant glass and enamels. several boric acids are known, all derived from boron trioxide with varying amount of water. For example,
Orthoboric acid H3BO3 or B2O3 . 3H2O
Metaboric acid HBO2 or B2O3 . H2O
Pyroboric acid H6B4O9 or 2B2O3 . 3H2O
Tetraboric acid H2B4O7 or 2B2O3 . H2O
of these, orthoboric acid is important.
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