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Colour and magnetic properties Short Tricks for JEE

6+ syllabus-aligned questions available

Quick answer

Short tricks for Colour and magnetic properties work only with strong fundamentals. Apply the tips below in timed sets and review every explanation.

Use these Colour and magnetic properties shortcuts to save time in JEE Chemistry papers — then validate speed with 6+ MCQs on Goodmarks.

Short tricks for speed

  • Colour and magnetic properties focus drill

    Solve 15 mixed MCQs for Colour and magnetic properties, review every explanation, and note formulas you hesitated on.

  • NCERT line recall

    For Inorganic, exact NCERT phrasing often matches the correct option — highlight one-liners during revision.

  • Balance then compare

    In Physical Chemistry numericals, write the balanced relation first, then substitute values with units.

Syllabus context

Part of Coordination Compounds in JEE Main Chemistry.

Free sample questions

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Q1ChemistryUnit 12: Coordination Compounds
The calculated spin-only magnetic moments (BM) of the anionic and cationic species of [Fe(H2O)6]2\left[\boldsymbol{F} e\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{6}\right]_{2} and [Fe(CN)6],\left[\boldsymbol{F e}(\boldsymbol{C} \boldsymbol{N})_{\mathbf{6}}\right], respectively, are:
Q2ChemistryUnit 12: Coordination Compounds
Which of the following options are correct regarding the complex [Fe(CN)6]3−and⁡[Fe(CN)6]4−\left[\boldsymbol{F} \boldsymbol{e}(\boldsymbol{C} \boldsymbol{N})_{\boldsymbol{6}}\right]^{\boldsymbol{3}-} \operatorname{and}\left[\boldsymbol{F} \boldsymbol{e}(\boldsymbol{C} \boldsymbol{N})_{\boldsymbol{6}}\right]^{\boldsymbol{4}-} This question has multiple correct options
Q3ChemistryUnit 12: Coordination Compounds
Select the correct statements amount the following: 1. Complexes [Cu(NH3)4]2+,[MnCl4]2+,[Fe(CN)6]\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 [Cu(NH34)]2+,[Ni(CN)4]2−,[Ni(DM\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 [Fe(H2O)3]3+<\left[\boldsymbol{F e}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{3}\right]^{3+}< [Fe(C2O3)]3−<[Fe(CN)3]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-} 4. [Cr(en)3]3+\left[\boldsymbol{C r}(\boldsymbol{e n})_{3}\right]^{3+} exist in the three isometric forms
Q4ChemistryUnit 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) Zn2+Z n^{2+} is colourless. iii) MnCl2M n C l_{2} exhibits green color in aqueous solution. iv) Fe,Co,NiF e, C o, N i complexes are diamagnetic in nature.
Q5ChemistryUnit 12: Coordination Compounds
In nitroprusside ion, the iron and NO exist as Fe+2\mathrm{Fe}^{+2} and NO+\mathrm{NO}^{+}, instead of Fe+3\mathrm{Fe}^{+3} and NO. The given conclusion can be drawn by:
Q6ChemistryUnit 12: Coordination Compounds
In aqueous solution, [Co(H2O)6]2+(X)\left[\boldsymbol{C o}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{6}\right]^{2+}(\boldsymbol{X}) reacts with molecular oxygen in the presence of excess liquor NH3N H_{3} to give a new complex YY. The number of unpaired electrons in XX and YY are, respectively.

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Are short tricks enough for Colour and magnetic properties in JEE?

No — tricks complement concepts. Master the theory first, then use shortcuts in timed MCQ practice.

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