List the uses of boron and its compounds.

Important Questions on The p-Block Elements-Group 13 (Boron Family)

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Diborane $\left({\mathrm{B}}_2{\mathrm{H}}_6\right)$ reacts independently with ${\mathrm{O}}_2$ and ${\mathrm{H}}_2\mathrm{O}$ to produce, respectively:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Boric acid is an acid because its molecule

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Among the following, the correct statement(s) is(are)

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

A mixture of Boron trichloride and hydrogen is subjected to silent electric discharge to form $\mathrm{x}$ and $\mathrm{HCl}$. $\mathrm{x}$ is mixed with ${\mathrm{NH}}_3$ and heated to ${200}^0\mathrm{C}$ to form $\mathrm{y}$. The formula of $\mathrm{y}$ is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The alloy used in the construction of aircrafts is:

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The reaction of ${\mathrm{H}}_3{\mathrm{N}}_3{\mathrm{B}}_3\mathrm{C}{\mathrm{l}}_3\left(\mathrm{A}\right)$ with $\mathrm{L}\mathrm{i}\mathrm{B}{\mathrm{H}}_4$ in tetrahydrofuran gives inorganic benzene $\left(\mathrm{B}\right)$ . Further, the reaction of $\left(\mathrm{A}\right)$ with $\left(\mathrm{C}\right)$ leads to ${\mathrm{H}}_3{\mathrm{N}}_3{\mathrm{B}}_3{\left(\mathrm{M}\mathrm{e}\right)}_3$ . Compounds $\left(\mathrm{B}\right)$ and $\left(\mathrm{C}\right)$ respectively, are:

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The correct statement(s) for orthoboric acid is/are

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Which of the following represents the structure of inorganic benzene?

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The crystalline form of borax has

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The number of $2$-centre-$2$-electron and $3$-centre-$2$-electron bonds in ${\mathrm{B}}_2{\mathrm{H}}_6$, respectively, are:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

When aqueous solutions of borax is acidified with $\mathrm{HCl}$, we get

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Which components are used in the preparation of scientific balance and light instruments?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The order of acidic strength of boron trihalides

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The green colour produced in the borax bead test of a chromium(III) salt is due to -

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

A Lewis acid $\text{'}\mathrm{X}\text{'}$ reacts with ${\mathrm{LiAlH}}_4$ in ether medium to give a highly toxic gas. This gas when heated with ${\mathrm{NH}}_3$ gives a compound commonly known as inorganic benzene. The gas is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Which of the following molecules does not exist as monomer in its major form?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

${\mathrm{H}}_3{\mathrm{BO}}_3$ is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

${\mathrm{AlF}}_3$ is soluble in $\mathrm{HF}$ only in presence of $\mathrm{KF}$. It is due to the formation of

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

The correct statements among I to III regrading group 13 element oxides are,
(I) Boron trioxide is acidic.
(II) Oxides of aluminum and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements-Group 13 (Boron Family)>Uses of Boron and Aluminium and Their Compounds

Which alloy is used to make an aircraft?