Which of the following statement(s) is/are correct?

Options

A. Borax on strong heating produces a glassy mass of sodium metaborate and boric anhydride
B. The formula of boraxd is `Na_(2)[B_(4)O_(5)(OH)_(2)].8H_(2)O`
C. Aqeous solution of borax is weakly acidic in nature
D. The number of `B-O` bonds in borx is 5

Answer

A, D

Explanation

(i) Formula of borax is `Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O`
(ii) Aqeous solution of borax is weakly alkaline.