Q.

Statement I :Boron is extremely hard indicating its high lattice energy
Statement II :Boron has the highest melting and boiling point compared to its other group members.
 

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a

 Both statement I and Statement II are incorrect.

b

Statement I is correct. Statement II is incorrect.

c

Statement I is incorrect. Statement II is correct.

d

Both statement I and Statement II are correct.

answer is A.

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Detailed Solution

Due to very strong crystalline lattice, boron has unusually high melting point and boiling point.

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