43 JEE Main 2021 Coordination Compounds previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2021 previous-year questions from the Coordination Compounds chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Coordination Compounds chapter hub.
Indicate the complex/complex ion which did not show any geometrical isomerism :
The correct structures of trans - NiBr PPh 3 2 2 and meridional - Co NH 3 3 NO 2 3 respectively, are:
According to the valence bond theory the hybridization of central metal atom is dsp 2 for which one of the following co…
The spin-only magnetic moment value for the complex Co ( CN ) 6 4 - is...... BM . (nearest integer value) [At. no. of C…
The hybridization and magnetic nature of Mn CN 6 4 - and Fe CN 6 3 - , respectively are :
1 mol of an octahedral metal complex with formula MCl 3 · 2   L on reaction with excess of AgNO 3 gives 1 …
3 moles of metal complex with formula Co ( en ) 2 Cl 3 gives 3 moles of silver chloride on treatment with excess of sil…
Which one of the following species responds to an external magnetic field?
The total number of unpaired electrons present in [Co (NH₃ )₆ ] Cl₂ and [Co (NH₃ )₆ ] Cl₃ is
Given below are two statements : Statement I: Mn ( CN ) 6 3 - ,    Fe ( CN ) 6 3 - and Co C 2 O 4 3 3 - are d…
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