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JEE Main201910 Jan 2019Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

The number of 2 -centre- 2 -electron and 3 -centre- 2 -electron bonds in B 2 H 6 , respectively, are:

Options

  1. A4 and 2
  2. B2 and 4
  3. C2 and 2
  4. D2 and 1

Correct answer

A. 4 and 2

Step-by-step solution

B 2 H 6 has 2 bridge bonds 3 C - 2 e - and 4 terminal bonds 2 C - 2 e - .

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