The d and f-Block Elements questions
808 published questions with worked solutions.
- Which of the following ion is diamagnetic?
- The reason for the stability of Gd^ 3+ ion is
- When MnO_2 is fused with KOH, a coloured compound is formed. The product and its colour is
- Statement 1: Oxalates and carbonates of lanthanides are almost insoluble in water Statement 2: Salts of lanthanides usually...
- Which of the following is not an actinide?
- Statement 1: Mercury is liquid at room temperature Statement 2: In mercury, there is no unpaired d-electron and thus, metallic...
- Arrange Ce^ 3+ , La^ 3+ , Pm^ 3+ and Yb^ 3+ in increasing order of their ionic radii
- The electronic configuration of actinoids can be assigned with degree of certainty because of
- The basic character of the transition metal monoxide follows the order (At. no of Ti = 22, V = 23, Cr = 24, Fe = 26)
- Statement 1: Tungsten has the highest melting point Statement 2: Tungsten is a covalent compound
- Among Sc(III), Ti(IV), Pd(II) and Cu(II) ions
- Which lanthanoid compound is used as a most powerful liquid lasers after dissolving it in selenium oxychloride?
- In M is element of actinoids series, the degree of complex formation decreases in the order
- Which of the following pair will have effective magnetic moment equal?
- Magnetic moment of Mn in MnSO_4 is 5.91 BM. Thus it has _____ electrons in 3d orbitals.
- How many of the following are paramagnetic as well as coloured species? O_2, NO_2, Cu^ 2+ , Hg^ 2+ , Fe^ 2+ , Fe^ 3+ ,...
- How many of the following pairs have approximately equal radii? (Zr,Hf); (Nb,Ta); (Cr,Mn); (Mn,Fe); (Nb^ 3+ ,Ta^ 3+ )
- Compound when Cl_2 gas is passed into K_2MnO_4 solution _____.
- Compounds when K_2Cr_2O_7 solution is made alkaline _____.
- Transition elements form alloys easily because they have:
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration