Which is correct among the following?

${\mathrm{PCl}}_3$ fumes in moisture due to ${\mathrm{H}}_2{\mathrm{SO}}_4$ formation

Among oxoacids of $P,{\mathrm{H}}_3{\mathrm{PO}}_2$  is strong reducing agent.

Bond angle in ${\mathrm{NH}}_3$ is lower than that in ${\mathrm{PH}}_3\text{.}$

 ${\mathrm{PH}}_3$ has higher boiling point than ${\mathrm{NH}}_3\text{.}$