Question

Consider the following statements are arrange in the order of true/false as given in the codes. Select the correct arrangement.
$S_1$: Ammonia on heating with concentrated solution of sodium hypochlorite gives nitrogen gas.
$S_2$: The phosphine gas dissolves in water in presence of sunlight and produces phosphonium hydroxide like ammonium hydroxides.
$S_3$: Barium azide on heating gives pure nitrogen gas.
$S_4$: The oxo-acids of phosphorus in which phosphorus has lower oxidation state less than +5 contain either $P-P$ or $P-H$ bonds but not both in addition to $P=O$ and $P-OH$ bonds.

• A. T F T T
• B. F F T T
• C. T T T F
• D. T F T F

Answer 1

The correct option is A T F T T

$S_1:$ Ammonia on heating with concentrated $NaOCl$ gives Nitrogen gas that is reduction reaction.
$S_2:$ Phosphine gas does not dissove in water.
$S_3:$ Pure nitrogen gas is prepared on heating Barium azide $\left(B{a}_3{N}_2\right)$
$S_4:$ Oxo-acids of phosphorus with lower oxidation states contain either $P-P$ or $P-H$ bonds only.