Phosphorous and phosphoric acids are,respectively, . . . . . . acids.

An element whose $IUPAC$ name is ununtrium $(Uut)$ belongs to

Which one of the orders is correctly matched with the property mentioned against it?

Which of the following compounds does not produce ammonia upon heating?

$P_{4}O_{10}$ reacts with water to produce

Determine whether the following statements are True $(T)$ or False $(F)$:
$1.$ Ammonia is produced from a mixture of $SO_2$ and $N_2$.
$2.$ $N_2H_2$ and $N_2H_4$ are formed from a mixture of $N_2/H_2$ in the Haber process.
$3.$ Compounds of $d$ or $f$ block elements are not used as catalysts in the Haber process.