Sodium salt of pseudohalogens, X, Y and Z form colorless solutions in water. Solution of X decolorizes I3- solution with brisk effervescence. Solution of Y gives an intense red colour on reaction with Fe3+ solution. Solution of Z gives an intese blue color on reaction with a solution containing Fe3+ and Fe2+ ions. The pseudohalogens X, Y and Z respectively are

ABC26IN0469 · Main Group Elements

Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Element – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium

Sodium salt of pseudohalogens, $\mathrm{X}, \mathrm{Y}$ and Z form colorless solutions in water. Solution of X decolorizes $\mathrm{I}_{3}^{-}$ solution with brisk effervescence. Solution of Y gives an intense red colour on reaction with $\mathrm{Fe}^{3+}$ solution. Solution of Z gives an intese blue color on reaction with a solution containing $\mathrm{Fe}^{3+}$ and $\mathrm{Fe}^{2+}$ ions. The pseudohalogens X, Y and Z respectively are

(a)$\mathrm{CN}^{-}, \mathrm{N}_{3}^{-}$and $\mathrm{CNS}^{-}$

(b)$\mathrm{N}_{3}^{-}, \mathrm{CNS}^{-}$and $\mathrm{CN}^{-}$

(c)$\mathrm{N}_{3}^{-}, \mathrm{CN}^{-}$, and $\mathrm{CNS}^{-}$

(d)$\mathrm{N}_{3}^{-}, \mathrm{CNS}^{-}$, and $\mathrm{CNO}^{-}$

Answer

Answer (as printed): B

Explanation

No explanation was printed for this question.

Open in whiteboard · Browse this chapter in the app