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Medium Colour and magnetic properties MCQs for JEE

6+ syllabus-aligned questions available

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Medium Colour and magnetic properties MCQs bridge basics and advanced JEE problems — 6+ available on Goodmarks.

Medium-difficulty Colour and magnetic properties MCQs mirror typical JEE Main questions. Practise 6+ MCQs with step-by-step solutions.

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Part of Coordination Compounds in JEE Main Chemistry.

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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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