`Na_(2)B_(4)O_(7).10H_(2)O` is correctly represent by

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Answer :

`Na_(2)B_(4)O_(7).10H_(2)O` is correctly represent by A. `2NaBO_(2).Na_(2)B_(2)O_(3).10H_(2)O` B. `Na_ ... H_(2)O)_(4)O_(7)].6H_(2)O` D. None of these

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Last Answer : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..

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