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In diborane, the number of electrons tha...

In diborane, the number of electrons that account for f bonding in the bridges is-

A

six

B

two

C

eight

D

four

Text Solution

Verified by Experts

The correct Answer is:
D

Two bridging bonds are present in diborane. In the · bridges, each H-atom is bonded to two B-atoms by sharing of only one pair of electrons i.e., 3c-2e bonds. Thus, total number of electrons for two bridges is four.
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-ENTRANCE (QUESTION BANK)
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  5. Which of the following ions cannot be formed by boron-

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  6. Which of the following exists as covalent crystals in the solid state-

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  7. Which of the following are Lewis acids-

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  8. Which of the following oxide is amphoteric -

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  9. Which of the following statements is incorrect-

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  10. Name the two types of the structure of silicate in which one oxygen at...

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  11. Which of these is least likely to act as a Lewis base

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  12. Which of the following is electron deficient-

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  13. Number of carbon atoms per unit cell of diamond unit cell is -

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  14. Which of these is not a monomer for a high molecular mass silicone pol...

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  15. Which of the following structure is similar to graphite -

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  16. The basic structural unit of silicate is -

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  17. The stability of +l oxidation state among Al, Ga, In and Tl increase i...

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  18. AlF3 is soluble in HF only in presence of KF. It is due to the formati...

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