Physical Properties of Group 13 Elements

Given below are two statements:

Statement I: Boron is extremely hard indicating its high lattice energy.

Statement II: Boron has highest melting and boiling point compared to its other group members.

In the light of the above statements, choose the most appropriate answer from the options given below

Which one of the following elements will remain as liquid inside pure boiling water?

Statement $1:$ Boron is hard as it has high lattice energy.

Statement $2:$ Boron has high melting and boiling points as compared to other group elements.

Assertion: Among group $13$ elements, boron has unusually high melting point.

Reason: Boron has a very strong crystalline lattice.

The correct option among the following is

Identify the correct statements about Boron.
I. It has high melting point.
II. It has high density.
III. It has high electrical conductivity
IV.$\mathrm{B}-10$ isotope of it has high ability to absorb neutrons

Boron is

Which of the following element has the highest boiling point ?

Which of the following element has the lowest boiling point ?

On moving down the group, the boiling points of boron family elements 

Which of the following element has highest density ?

The densities of boron family elements are more than

Write a short note on 'Boron is an Insulator'.

Why aluminum wire is generally used in power transmission lines and local power distribution lines.

Copper wire have more electrical conductive efficiency than Aluminium wire if both wire have same weight

Write a short note on Electrical conductivity of group 13 elements.

Order of standard reduction potential$\left({\mathrm{M}}^{3+}\to \mathrm{M}+ 3{\mathrm{e}}^{-}\right)$ of group 13?

What is the boiling point of gallium?

Which one of the following has the lowest m.p.?

Correct order of melting points of ${13}^{\text{th }}$group elements?

Match column I with column II