Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • I need help with Boron cannot form which one of the following anions?

Boron cannot form which one of the following anions?

  • Option 1)

    BF_{6}^{3-}\;

  • Option 2)

    \; BH_{4}^{-}\; \;

  • Option 3)

    \; B(OH)_{4}^{-}\;

  • Option 4)

    \; BO_{2}^{-}

 

Answers (1)

best_answer

As we learned in

Oxidation state of boron family -

Boron show +3 covalence, this tendency decreases down the group, other members have +3 oxidation state form ionic compounds.

- wherein

Lower elements also show +1 ionic state due to inert pair effect. E.g. Tl+, Ga+

 

 Boron cannot expand its octet due to non availability of d-orbitals. Maximum covalence cannot exceed 4.


Option 1)

BF_{6}^{3-}\;

This option is correct.

Option 2)

\; BH_{4}^{-}\; \;

This option is incorrect.

Option 3)

\; B(OH)_{4}^{-}\;

This option is incorrect.

Option 4)

\; BO_{2}^{-}

This option is incorrect.

Posted by

Plabita

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: NIT Andhra Pradesh cut-offs drop for CSE, ECE, other BTech programmes this year; closing rank
anam-khan

JEE Main 2025 Live: Exam city slip soon at jeemain.nta.nic.in; admit card date, cut-off updates
anam-khan

BTech Admissions 2025: GUJCET registration ends on December 31; JEE Main, AEEE, WBJEE, SRMJEEE exam date

Latest Question