Home Chemistry Co-ordinatios Compounds NEET Previous Year Question A coordination complex compound of cobalt ha…
Chemistry Co-ordinatios Compounds NEET Previous Year Question Single Correct MCQ
Published on: August 12, 2026

A coordination complex compound of cobalt has the molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of solution, we get two moles of precipitate. The ionic formula for this complex would be

A
B
C
D

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The correct answer is:
A

As the complex gives two moles of . with solution, so the complex must have two ionisable atoms. Hence the probable complex, which gives three mole ions may be

one mole mole ions.

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