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The compounds of \[\ce{Ti^4+}\] ions are colourless due to ______.
Concept: General Properties of the Transition Elements (D-block)
What are f-block elements?
Concept: F-block Elements >> General Indroduction
What are chemical twins? Write ‘two’ examples.
Concept: F-block Elements >> The Lanthanoids
What are lanthanoids?
Concept: F-block Elements >> The Lanthanoids
Which among the following pairs of elements is 'not' an example of chemical twins?
Concept: F-block Elements >> The Lanthanoids
Write the different oxidation states of iron
Concept: F-block Elements >> The Lanthanoids
Explain, why lanthanum (Z = 57) forms La3+ ion, while cerium (Z = 58) forms Ce4+ ion?
Concept: F-block Elements >> The Lanthanoids
What are the consequences of lanthanoid contraction?
Concept: F-block Elements >> The Lanthanoids
What is the position of actinoids in periodic table ?
Concept: F-block Elements >> The Actinoids
What is the action of the following on lanthanoids?
a. water
b. Sulphur, heat
c. nitrogen, heat
Concept: F-block Elements >> The Lanthanoids
Manganese in the +2 oxidation state is more stable than +3 oxidation state where as iron is stable at +3 oxidation state than +2 oxidation state. Explain why?
Concept: F-block Elements >> The Actinoids
Illustrate with example, the difference between a double salt and a co-ordination compound
Concept: Coordination Compounds >> Introduction
Write the formula of Tetraminodichloroplatinum (IV) chloridex.
Concept: Nomenclature of Coordination Compounds - Formulas of Mononuclear Coordination Entities
Which of the following complexes will give a white precipitate on treatment with a solution of barium nitrate?
- [Cr(NH3)4SO4] Cl
- [Co(NH3)4Cl2] NO2
- [Cr(NH3)4Cl2]SO4
- [CrCl2(H2O)4]Cl
Concept: Bonding in Coordination Compounds >> Colour in Coordination Compounds
On the basis of valence bond theory explain the nature of bonding in [CoF6]3 ion.
Concept: Bonding in Coordination Compounds >> Valence Bond Theory (VBT)
Write the IUPAC name of [ Co(NO2)3(NH3)3 ].
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
Explain Sidgwick’s electronic theory with suitable example
Concept: Coordination Compounds >> Introduction
Explain cationic complexes and anionic complexes of co-ordination compounds.
Concept: Isomerism in Coordination Compounds >> Stereoisomerism
Write the structure and IUPAC names of isomeric aldehydes having molecular formula C5H10O.
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
Mohr’s Salt is -
(a) Ferrous ammonium sulphate
(b) Ferrous sulphate
(c) Ammonium sulphate
(d) Ferric sulphate
Concept: Werner’s Theory of Coordination Compounds
