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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)Boron and Its Compounds

The number of OH units directly linked to boron atoms in Na₂B₄O₇.10H₂O is:

A.2

B.3

C.4✓ Correct

D.10

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