List of top Chemistry Questions on Group 13 Elements

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Melting point of Boron (2453 K) is unusually high in group 13 elements.
Reason (R): Solid Boron has a very strong crystalline lattice. 
In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement I: Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement II: \( AlCl_3 \) upon hydrolysis in acidified aqueous solution forms octahedral \([Al(H_2O)_6]^{3+}\) ion.
In the light of the above statements, choose the correct answer from the options given below:

Yellow compound of lead chromate gets dissolved on treatment with hot NaOH solution. The product of lead formed is a:

Group-13 elements react with O₂ in amorphous form to form oxides of type M₂O₃ (M = element). Which among the following is the most basic oxide?

Silicon doped with electron elements of group-13 forms.

Number of electron deficient molecules among the following
\(PH_3, B_2H_6, CCl_4, NH_3, LiH \) and \(BCl_3\) is

The increasing order of atomic radii of the following group 13 elements is:

The number of 2 -centre- 2 -electron and 3-centre-2-electron bonds in $B _{2} H _{6}$, respectively, are :

Which of the following element has the highest ionisation enthalpy?

The correct statement among the following is

The amorphous form of silica is :

Which of the following reactions can be used to prepare diborane? I) $ {BF_3 + LiAlH_4 ->[ether]}$ II) $ {BF_3 + NaH ->[450 k]}$ III) $ {Na_2B_4O_7 + H_2O -> }$ IV) $ { NaBH_4 + I_2 ->}$

Which of the following metals exist in liquid state duiing summer season?

The species, having bond angles of $120^{\circ}$ is :-

Among the following compounds of Boron, the species which also forms $\pi $ - bond in addition to $\sigma$ - bonds is:

The hybridized state of $Al^{3+}$ in the complex ion formed when $AlCl_3$ is treated with aqueous acid is

The Lewis acidity of $BF_3$ is less than $BCl_3$ even though fluorine is more electronegative than chlorine. It is due to

Boron always forms covalent bond. The small size of $B ^{3+}$ favours formation of covalent bond.

The group 13 element that is liquid during summer and used for measuring high temperature is

Which one of the following has incomplete octet?

Boron cannot form which one of the following anions?

Which of the following is similar to graphite

The tendency of $BF_3, BCl_3$ and $BBr_3$ to behave as Lewis acid decreases in the sequence