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JEE Main 201815 April
Exam
JEE Main
Year
2018
Date
15 April
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2018 · 15 April · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

A white sodium salt dissolves readily in water to give a solution...

A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the before mentioned solution, a white precipitate is obtained which does not dissolve in dilute nitric acid. The anion is:

Options

  1. ACO32−{CO}_{3}^{2 -}
  2. BSO42−{SO}_{4}^{2 -}
  3. CS2−{S}^{2 -}
  4. DCl−{Cl}^{-}

Correct answer

D. Cl−{Cl}^{-}

Step-by-step solution

Na(aq)++Cl−(aq)+AgNO3→AgCl↓White+NaNO3{Na}_{( aq )}^{+} + {Cl}^{-}( aq ) + {AgNO}_{3} \to \mathop{AgCl ↓}_{White} + {NaNO}_{3}

AgCl+HNO3(dil)→DoesnotdissolveAgCl + {HNO}_{3} ( dil ) \to Doesnotdissolve

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