A coloured salt of cobalt is subjected to borax bead test. The transparent borax bead turns blue. From the given reaction, identify the one which does not take place during the process

A coloured salt of cobalt is subjected to borax bead test. The transpa

1.	A coloured salt of cobalt is subjected to borax bead test. The transparent borax bead turns blue. From the given reaction, identify the one which does not take place during the process
Answer» `4NaBO_(2) + CO_(2) rarr Na_(2)B_(4)O_(7) + Na_(2)CO_(3)` `Na_(2)B_(4)O_(7) rarr 2NaBO_(2) + B_(2)O_(3)` `Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O rarr Na_(2)B_(4)O_(7) + 10H_(2)O` `CoO + B_(2)O_(3) rarr Co(BO_(2))_(2)` ANSWER :A