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JIPMER 2009
Exam
JIPMER
Year
2009
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JIPMER 2009 · Chemistry · Haloalkanes and Haloarenes

Iodoform gives a precipitate with AgNO_3 on heating but chloroform...

Iodoform gives a precipitate with AgNO3\mathrm{AgNO}_3 on heating but chloroform does not because

Options

  1. AC - I bond in iodoform is weak and C−Cl\mathrm{C}-\mathrm{Cl} bond in chloroform is strong
  2. Bchloroform is covalent
  3. Ciodoform is ionic
  4. DNone of the above

Correct answer

A. C - I bond in iodoform is weak and C−Cl\mathrm{C}-\mathrm{Cl} bond in chloroform is strong

Step-by-step solution

On heating C−I\mathrm{C}-\mathrm{I} bond in CHI3\mathrm{CHI}_3 breaks, but C−Cl\mathrm{C}-\mathrm{Cl} bond in CHCl3\mathrm{CHCl}_3 does not break. Thus, AgNO3\mathrm{AgNO}_3 gives precipitate AgI with iodoform.
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