d and f Block Elements

Which from following elements is in liquid state at room temperature?

Which among the following elements does NOT exhibit ferromagnetic properties?

Which from following elements exhibits ferromagnetic properties?

What is the number of elements present in each series of transition element?

What is the numerical value of spin only magnetic moment of copper in +2 state?

Which element from the following possesses half-filled d-orbitals either in expected or in observed electronic configuration?

Oxidation state of manganese in potassium permanganate is:

Which from following cations in their respective oxidation states develops colourless aqueous solution?

Which element from following does NOT exhibit spin only magnetic moment in +3 state?

Identify lanthanoid element from following.

Which of the following elements is doped with to obtain fibre amplifiers for optical fibre communication system?

Which among the following properties of lanthanoids is NOT true?

Identify the element with smallest ionic radius in +3 oxidation state from following.

Which among the following cations will not form coloured compounds? (Atomic number \(\mathrm{Cu}=29, \mathrm{Ti}=22, \mathrm{~V}=23, \mathrm{Mn}=25\))

Which element from following in +3 oxidation state forms colourless compounds?

Identify ferromagnetic element from following.

Which of the following elements in their respective oxidation states does not develop spin only magnetic moment? [\(\mathrm{Ti}(\mathrm{Z}=22), \mathrm{Zn}(\mathrm{Z}=30), \mathrm{V}(\mathrm{Z}=23), \mathrm{Cu}(\mathrm{Z}=29)\)]

What is value of spin only magnetic moment of \(\mathrm{Ni}(\mathrm{Z}=28)\) in +2 oxidation state?

Which block elements from following are known as transition elements?

Which element from following exhibits various different oxidation states from +2 to +7?

Which element from following lanthanoids has half-filled \(\mathrm{f}\)- orbital in observed and expected electronic configuration?

Which property from following is NOT exhibited by interstitial compounds?

Which element among the following is ferromagnetic?

Identify the correct statement about properties of interstitial compounds.

Which among the following elements has completely filled 4d-orbital?

Which among following properties of lanthanoids is NOT true?

What are the formulae of the compounds formed when lanthanoids (Ln) react with nitrogen and halogen respectively?

Identify the correct decreasing order of densities of $d$-block elements.

Identify the element having highest enthalpyot atomisation from following.

Which among the following lanthanoids, shows only +3 oxidation state?

Which of the following actinoids exhibits only +3 oxidation state?

Which of the following elements belongs to first inner transition series?

.What is the shape and magnetic nature of permanganate ion?

The highest oxidation state in plutonium (At. no. $=94$) is

The ionic charges on chromate ion and dichromate ion respectively is

When a mixture of manganese dioxide, potassium hydroxide and potassium chlorate is fused, the product obtained is