First slide

Anomalous properties of Boron

Question

The statements regarding ‘B’ and Al are
I) Boron is a bad conductor of heat and electricity
II) Aluminium hydrides are stable
III) Maximum covalency of Boron is 4
The correct statements are

Easy

A

Only I is correct
B

I and III are correct
C

All are correct
D

III is only correct

Solution

Maximum covalency of B is 4,due to presence of only three valency orbitals ,those are one ns orbital and three np orbitals.
Boron is bad conductor of electricity and heat,because boron is non metal.

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