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1
JEE Main 2021 (Online) 27th August Evening Shift
Numerical
+4
-1
The number of optical isomers possible for [Cr(C2O4)3]3$$-$$ is ____________.
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2
JEE Main 2021 (Online) 27th August Morning Shift
Numerical
+4
-1
1 mol of an octahedral metal complex with formula MCl3 . 2L on reaction with excess of AgNO3 gives 1 mol of AgCl. The denticity of Ligand L is ____________. (Integer answer)
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3
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
3 moles of metal complex with formula Co(en)2Cl3 gives 3 moles of silver chloride on treatment with excess of silver nitrate. The secondary valency of Co in the complex is ___________.

(Round off to the nearest integer)
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4
JEE Main 2021 (Online) 27th July Morning Shift
Numerical
+4
-1
The number of geometrical isomers possible in triamminetrinitrocobalt (III) is X and in trioxalatochromate (III) is Y. Then the value of X + Y is _______________.
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