Chemistry · JEE

Colour and magnetic properties Previous Year Questions for JEE

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Q1ChemistryUnit 12: Coordination Compounds

Select the correct statements amount the following: 1. Complexes

\left[\boldsymbol{C u}\left(\boldsymbol{N} \boldsymbol{H}_{3}\right)_{4}\right]^{2+},\left[\boldsymbol{M} \boldsymbol{n} \boldsymbol{C l}_{4}\right]^{2+},\left[\boldsymbol{F} \boldsymbol{e}(\boldsymbol{C} \boldsymbol{N})_{6}\right]

are all paramagnetic 2. Complexes

\left[\boldsymbol{C u}\left(\boldsymbol{N} \boldsymbol{H}_{3} \boldsymbol{4}\right)\right]^{2+},\left[\boldsymbol{N} \boldsymbol{i}(\boldsymbol{C} \boldsymbol{N})_{4}\right]^{2-},[\boldsymbol{N} \boldsymbol{i}(\boldsymbol{D} \boldsymbol{M}

are all square planner 3. The correct stability order of the complexes will be

\left[\boldsymbol{F e}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{3}\right]^{3+}<

\left[\boldsymbol{F e}\left(\boldsymbol{C}_{2} \boldsymbol{O}_{3}\right)\right]^{3-}<\left[\boldsymbol{F} \boldsymbol{e}(\boldsymbol{C} \boldsymbol{N})_{3}\right]^{3-}

\left[\boldsymbol{C r}(\boldsymbol{e n})_{3}\right]^{3+}

exist in the three isometric forms

Q2ChemistryUnit 12: Coordination Compounds

The incorrect statement(s) among the following is (are): ¡) Primary valency of a transition metal ion in complex represent its oxidation number. ii)

Z n^{2+}

is colourless. iii)

M n C l_{2}

exhibits green color in aqueous solution. iv)

F e, C o, N i

complexes are diamagnetic in nature.

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Why practise PYQs for Colour and magnetic properties?

PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

Does Goodmarks have actual JEE past papers?

Our bank includes exam-style MCQs aligned with JEE Main Chemistry syllabus for Colour and magnetic properties, covering the same topics as previous year papers.

How should I use PYQs for Coordination Compounds?

Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

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Yes. Every question includes the correct answer and a detailed explanation showing the reasoning.