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KVPY2013Chemistryp Block Elements (Group 13 & 14)

In the structure of borax, the numbers of boron atoms and B-O-B units, respectively, are

Options

  1. A4 and 5
  2. B4 and 3
  3. C5 and 4
  4. D5 and 3

Correct answer

A. 4 and 5

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