Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at $25^{\circ} C$ ?

C o C l_{3} .6 N H_{3}

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C o C l_{3} .3 N H_{3}

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C o C l_{3} .4 N H_{3}

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C o C l_{3} .5 N H_{3}

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Solution

The correct option is B $C o C l_{3} .3 N H_{3}$
$C o C l_{3} .3 N H_{3}$ doesn‘t ionize to give free $C l^{-}$ , so it doesn‘t answer the test for chloride ions.

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Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at $25^{\circ} C$ ?

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Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25∘ C ?

The correct option is B CoCl3.3NH3CoCl3.3NH3 doesn‘t ionize to give free Cl−, so it doesn‘t answer the test for chloride ions.

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at $25^{\circ} C$ ?

The correct option is B $C o C l_{3} .3 N H_{3}$
$C o C l_{3} .3 N H_{3}$ doesn‘t ionize to give free $C l^{-}$ , so it doesn‘t answer the test for chloride ions.