The incorrect order of $1^{st}$ $IP$ of the elements is
$Al > Ga$
$P > S$
$Cu < Zn$
$Zr < Hf$
Why is boric acid considered as a weak acid ?
Explain what happens when boric acid is heated.
$AlC{l_3}$ is
Which one of the following is the correct statement ?
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: