1
JEE Main 2022 (Online) 25th June Morning Shift
Numerical
+4
-1
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If [Cu(H2O)4]2+ absorbs a light of wavelength 600 nm for d-d transition, then the value of octahedral crystal field splitting energy for [Cu(H2O)6]2+ will be ____________ $$\times$$ 10$$-$$21 J. [Nearest Integer]

(Given : h = 6.63 $$\times$$ 10$$-$$34 Js and c = 3.08 $$\times$$ 108 ms$$-$$1)

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2
JEE Main 2022 (Online) 24th June Morning Shift
Numerical
+4
-1
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In the cobalt-carbonyl complex : [Co2(CO)8], number of Co-Co bonds is "X" and terminal CO ligands is "Y". X + Y = ___________.

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3
JEE Main 2021 (Online) 1st September Evening Shift
Numerical
+4
-1
Change Language
The sum of oxidation states of two silver ions in [Ag(NH3)2] [Ag(CN)2] complex is _____________.
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4
JEE Main 2021 (Online) 27th August Evening Shift
Numerical
+4
-1
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The number of optical isomers possible for [Cr(C2O4)3]3$$-$$ is ____________.
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