Q.
Borax contains tetra nuclear unit [B4O5 (OH)4]2- of 48 atoms. The correct formula of borax is:
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a
Na2 B4O5(OH)4⋅8H2O
b
a2 B4O5(OH)4⋅6H2O
c
Na2 B4O5(OH)4⋅5H2O
d
Na2 B4O5(OH)4⋅7H2O
answer is A.
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Detailed Solution
Na2 B4O5(OH)4⋅8H2O
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