Study the given statements and identify the incorrect ones with respect to borax and accordingly mark correct option.
I). Aqueous solution of borax can be used as a buffer.
II) For titration against acids, it is a useful primary standard.
III) 1 mole of borax can be used as a buffer.
IV) There are two triangular units and two tetrahedral units.
II, III
l, lV
l, II, III
None