Applications of d-Block and f-Block Elements

The mixed oxides of lanthanides are used in 

Which of the following used as a catalyst for Wacker process?

Which of the following is used in photography?

A $\mathrm{d}$-block element used as a catalyst in the hydrogenation of oils is 

Write the uses of actinoids.

Write the uses of lanthanoids.

Write the few uses of $\mathrm{d}$-block elements.

Wilkinson's catalyst is:

Chemical formula of 'calomel' is:

Which of the following sets represents coinage metals?

Identity the incorrect pair from the following:

Identify the incorrect pair:

Acidified potassium permanganate is dropped over sodium peroxide taken in a round bottom flask as room temperature, vigorous reaction takes place to produce

When $\mathrm{M}\mathrm{n}{\mathrm{O}}_2$ is strongly heated to get oxygen gas, the oxidation number of Mn changes from +4 to?

A metal $\mathrm{M}$ and its compound can give the following observable changes in a sequence of reactions.
$\mathrm{M}\stackrel{\mathrm{d}\mathrm{i}\mathrm{l}\mathrm{u}\mathrm{t}\mathrm{e}\mathrm{H}\mathrm{N}{\mathrm{O}}_3}{\to }\left[\text{Colourless solution}\right]\underset{\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}}{\stackrel{\mathrm{a}\mathrm{q}\mathrm{u}\mathrm{e}\mathrm{o}\mathrm{u}\mathrm{s}}{\to }}\left[\mathrm{W}\mathrm{h}\mathrm{i}\mathrm{t}\mathrm{e} \text{ppt.}\right]\stackrel{\mathrm{e}\mathrm{x}\mathrm{c}\mathrm{e}\mathrm{s}\mathrm{s} \mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}\left(\mathrm{a}\mathrm{q}.\right)}{\to }\left[\text{Colourless solution}\right]$
$\stackrel{{\mathrm{H}}_2\mathrm{S}}{\to }\left[\text{White ppt.}\right]$, Metal $\mathrm{M}$ will be: