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Na_(2)B_(4)O_(7)overset(Delta)toNaBO_(2)+B_(2)O_(3) NaBO_(2)+H_(2)O_(2)+H_(2)O to compound A(aq)The compound A the sum of oxidation states of all the oxygen atoms is X. Then the value of (X) is

Answer»


SOLUTION :`2NaBO_(2)+2H_(2)O_(2)+6H_(2)OtoNa_(2)[(OH)_(2)B(O-O)_(2)B(OH)_(2)]`sodium peroxoborate

`X=[(-2)xx4+(-1)xx4]=-12` , HENCE `|X|=12`


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