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`Na_(2)B_(4)O_(7).10H_(2)Ooverset(triangle)toNaBO_(2)+A+H_(2)O`,`A+MnOoverset(triangle)toB` A and B are :

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`Na_(2)B_(4)O_(7).10H_(2)Ooverset(triangle)toNaBO_(2)+A+H_(2)O`,`A+MnOoverset(triangle)toB`
A and B are :
A. `Na_(3)BO_(3), Mn_(3)(BO_(3))_(2)`
B. `Na_(2)(BO_(2))_(2), Mn(BO_(2))_(2)`
C. `B_(2)O_(3), Mn(BO_(2))_(2)`
D. None is correct
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Correct Answer - C
`A = B_(2)O_(3), B = MnO+B_(2)O_(3)toMn(BO_(2))_(2)`
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