Download App

Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds3 Marks
Question
Write down the IUPAC name for the following complex and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:
K[Cr(H2O)2(C2O4)2].3H2O
✓

Answer

K[Cr(H2O)2(C2O4)2].3H2O

Potassium diaquadioxalatochromate (III) trihydrate.

Oxidation state of chromium = 3

Electronic configuration: 3d3 : t2g3

Coordination number = 6

Shape: octahedral

Stereochemistry:

Magnetic moment, µ = $\sqrt{\text{n}(\text{n}+2)}$

$=\sqrt{3(3+2)}$

$=\sqrt{15}$

$=\text{~}4\text{BM}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Coordination Compounds→Coordination Compounds — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A 4% solution(w/ w) of sucrose (M = 342g mol-1) in water has a freezing point of 271.15K. Calculate the freezing point of 5% glucose (M = 180g mol-1) in water.
(Given: Freezing point of pure water = 273.15K)
→
Calculate the magnetic moment of a divalent ion in aqueous solution if its atomic number is 25.
→
A solution of H2O2 when titrated against KMnO4 solution at different intervals of time gave the following results:

Time (minutes) 0 10 20
Volume of KMnO4 (mL) 23.8 14.7 9.1

Show that decomposition of H2O2 is first order reaction.

→
The cell in which the following reaction occurs:
$2\text{Fe}^{3+}(\text{aq})+2\text{I}^-(\text{aq})\rightarrow2\text{Fe}^{2+}(\text{aq})+\text{I}_2(\text{s})\ \text{has}\ \text{E}^\circ_{\text{cell}}$ = 0.236 V at 298 K. Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction.
→
  1. Using valence bond theory predict the geometry and magnetic behaviour of [Cr(NH3)6]3+ ion[Cr=24].
  2. Write IUPAC name of:

[Pt(NH3)2Cl2].

→
Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law, with t1/2 = 3.00 hours. What fraction of sample of sucrose remains after 8 hours?
→
Explain optical isomerism in co-ordination compound.
→
Write a note on Wurtz reaction and its Limitations.
→
What are enantiomers? Draw the structures of the possible enantiomers of 3-methylpent-1-ene.
→
CCl4 and water are immiscible whereas ethanol and water are miscible in all proportions. Correlate this behaviour with molecular structure of these compounds.CCl4 is a non-polar covalent compound, whereas water is a polar compound. CCl4 can neither form hydrogen bonds with water molecules nor can it break hydrogen bonds between water molecule, therefore, it is insoluble in water. Ethanol is a polar compound and can form hydrogen bonds with water, which is a polar solvent, therefore it is miscible with water in all proportions.
→