Below are two statements, one labeled as Assertion $(A)$ and the other as Reason $(R):$
Assertion $(A)$: Among group $13$ elements, boron's melting point is unusually high $(2453 \mathrm{~K})$.
Reason $(R):$ Solid boron has a strong crystalline lattice.
In the context of the above statements, choose the correct answer from the following options:
Both $A$ and $R$ are true, but $R$ is not the correct explanation of $A.$
Both $A$ and $R$ are true, but $R$ is the correct explanation of $A.$
$A $ is true, but $R$ is false
$A$ is false, but $R$ is true
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$:
Assertion $A$ : The stability order of +$1$ oxidation state of $\mathrm{Ga}$, In and $\mathrm{Tl}$ is $\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}$.
Reason $R$ : The inert pair effect stabilizes the lower oxidation state down the group.
In the light of the above statements, choose the correct answer from the options given below :
Write chemical reaction to prepare inorganic benzene $(B_3N_3H_6)$.
Give origin of group $13$ elements
Which of the following form dimeric halides
Which of the following is not true about potash alum