Position of d-Block and f-Block Elements in Periodic Table

Choose the correct statements which are applicable to d-block elements.

How are $\mathrm{f}$-block elements classified?

$\mathrm{f}$-block elements are also known as 

In $\mathrm{f}$-block elements, the differentiating electron enters into 

Which of the following statement is incorrect for pair of elements $\mathrm{Zr} - \mathrm{Hf}$?

Which of the following elements belongs to $3\mathrm{d}$ series:

Which element doesnot belong to transition metal.

The increase in atomic number with reduction in atomic size is a general characteristic of elements of -

The true statement for an element with atomic number $46$ is :

Which of the following exists ?

The general electronic configuration of transition element is

The group which belongs to transition series is

The $5\mathrm{d}$ series of transition metals have more frequent metal-metal bonding in their compounds than do the $3\mathrm{d}$ and $4\mathrm{d}$ metals. Explain.

What is meant by disproportionation ? Give example of disproportionation reaction in aqueous solution.

Which of the following titanium compounds cannot be prepared? (Atomic No. of $\mathrm{Ti} = 22$).

Draw the structure of permanganate ion?

Write two examples of mixed oxides and give their equivalent oxides.

What is the number of unpaired electrons in ${\mathrm{Cu}}^{+}$?

The formula of Prussian blue is_____.

(A) ${\mathrm{KFe}}^{\mathrm{III}} \left[{\mathrm{Fe}}^{\mathrm{II}}\right(\mathrm{CN}{)}_6]$

(B) ${\mathrm{K}}_2{\mathrm{Fe}}^{\mathrm{III}} \left[{\mathrm{Fe}}^{\mathrm{II}}\right(\mathrm{CN}{)}_6]$

(C) ${\mathrm{K}}_{{}_3}{{\mathrm{Fe}}_3}^{\mathrm{III}} \left[{\mathrm{Fe}}^{\mathrm{II}}\right(\mathrm{CN}{)}_6]$

Enter the correct answer as A, B or C.