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Q.In the structure of Borax (Na2B4O7⋅10H2ONa_2B_4O_7 \cdot 10H_2O), the actual units present are:

a
[B4O5(OH)4]2−[B_4O_5(OH)_4]^{2-}
b
[B4O7]2−[B_4O_7]^{2-}
c
[B4O5(OH)2]2−[B_4O_5(OH)_2]^{2-}
d
[B4O9]2−[B_4O_9]^{2-}

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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