Which of the following is correct
Basicity of phosphorous acid is $3$
Perchloric acid has one peroxy linkage
Trimeta phosphoric acid does not have cyclic structure
Borazine has zero dipole moment
Which of the following is only acidic in nature
The incorrect stability order of $+3$ and $+1$ states of $13^{th}$ group elements (boron family) is
During water-gas shift reaction
In the metallurgy of aluminium, cryolite is mixed in the molten state because it
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: