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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 13 & 14)Practice

The total number of boron-oxygen bonds in borax is ′ x ′ and boron-oxygen-boron bonds are ′ y ′ . Then the value of x - y is:

Correct answer

9

Step-by-step solution

B - O bonds = 14 B - O - B bonds = 5 ∴ x - y = 14 - 5 = 9

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