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)
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Answer:
Correct Answer: 16. (a)
Solution:
- 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.