p-Block Elements-I - Result Question 16

Assertion and Reason

Read the following questions and answer as per the direction given below :

(a) Statement I is correct; Statement II is correct Statement II is the correct explanation of Statement I

(b) Statement I is correct; Statement II is correct Statement II is not the correct explanation of Statement I

(c) Statement I is correct; Statement II is incorrect

(d) Statement I is incorrect; Statement II is correct

16.

Statement I Boron always forms covalent bond.

Statement II The small size of $B^{3+}$ favours formation of covalent bond.

(2007, 3M)

Show Answer

Answer:

Correct Answer: 16. (a)

Solution:

  1. Small size and high charge on $B^{3+}$ makes it highly polarising. Therefore, in most of its compounds, boron forms covalent bonds.

Hence, both statement I and statement II are correct and statement II is a correct explanation of statement I.



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