ABC26IN1143 · Coordination Chemistry
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Reaction Mechanisms Substitution · Exam: NET JUNE 2019 · Marks: 2 · Difficulty: Medium
In the following sequence of reactions the correct P, Q and R are respectively 
(a)$\mathrm{KNO}_{2}, \mathrm{CO}_{2},\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{S}\right]^{+}, \mathrm{HgS}$
(b)$\mathrm{KNO}_{2}, \mathrm{N}_{2},\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5}(\mathrm{SCN})\right]^{2+},\left[\mathrm{Hg}(\mathrm{SCN})_{4}\right]^{2-}$
(c)$\mathrm{KNO}_{3}, \mathrm{N}_{2},\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5}(\mathrm{CN})\right]^{2+},\left[\mathrm{Hg}(\mathrm{OCN})_{4}\right]^{2-}$
(d)$\mathrm{NaN}_{3}, \mathrm{N}_{2},\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5}\left(\mathrm{N}_{3}\right)\right]^{2+},\left[\mathrm{Hg}\left(\mathrm{N}_{3}\right)_{4}\right]^{2-}$
Answer
Answer (as printed): B
Explanation
No explanation was printed for this question.