NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

Option B ($NH_4^+$) is correct because it has a tetrahedral geometry with bond angles of 109.5 degrees, which is larger than the bond angles in $NH_3$, $PCl_5$, and $SCl_2$. $PCl_5$ is incorrect because it has 120 and 90 degree angles, but the question asks for the maximum angle.