Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Advanced 2025Paper 2
Exam
JEE Advanced
Year
2025
Paper
Paper 2
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JEE Advanced 2025 · Paper 2 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

During sodium nitroprusside test of sulphide ion in an aqueous...

During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to

Options

  1. ANOS−\mathrm{NOS}^{-}
  2. BSCN−\mathrm{SCN}^{-}
  3. CSNO−\mathrm{SNO}^{-}
  4. DNCS−\mathrm{NCS}^{-}

Correct answer

A. NOS−\mathrm{NOS}^{-}

Step-by-step solution

Na2[Fe(CN)5(NO)]+Na2 S→Na4[Fe(CN)5(NOS)]\mathrm{Na}_2\left[\mathrm{Fe}(\mathrm{CN})_5(\mathrm{NO})\right]+\mathrm{Na}_2 \mathrm{~S} \rightarrow \mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_5(\mathrm{NOS})\right]
Sodium nitroprusside purple solution
Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Correct statement(s) about the compounds X , Y and Z is(are) JEE Advanced 2026Correct statement(s) about the compounds P , Q and R is(are) JEE Advanced 2026Find the correct statements related to group 15 hydrides. A. Reducing nature increases… JEE Main 2026Treatment of a gas ' X ' with a freshly prepared ferrous sulphate solution gives a… JEE Main 2026Correct statements from the following are: A. Nitrogen in oxidation states from +1 to +4… JEE Main 2026Given below are two statements: Statement I: The covalency of oxygen is generally two but… JEE Main 2026Given below are two statements : Statement (I) : Oxidising power of halogens decreases in… JEE Main 2026Given below are two statements : Statement I : The increasing order of boiling point of… JEE Main 2026 Full p Block Elements (Group 15, 16, 17 & 18) list All JEE Advanced PYQs