D & f- BLOCK ELEMENTS practice · Mixed difficulty

Monel metal is an alloy of?

Wrong match of the following is

Assertion: $d^5$ configuration is more stable than $d^4$

Reason: $d^5$ has more exchange energy as compared to $d^4$ because 10 & 6 exchanges are possible in $d^5$ & $d^4$ respectively.

Which is obtained when $\mathrm{S}{\mathrm{O}_2}$ is bubbled through a solution of $\mathrm{CuC}{\mathrm{l}_2}$?

Chemical name of vermilion is:

Duraluminium is an alloy contains:

Thermite is a mixture of iron oxide and:

A compound in which a metal ion ${\mathrm{M}^{x + }}$(Z=25) has a spin only magnetic moment of $\sqrt {24}$BM. The number of unpaired electrons in the compound and the oxidation state of the metal ion are respectively.

Most basic lanthanoids hydroxide among the following is

Yellow mercury (II) oxide is obtained when

A developer used in photography is:

The octahedral diamagnetic low spin complex among the following is

The stainless steel developed in India contains the following special components:

In context of the lanthanoids, which of the following statements is not correct?

which of the following does not exist

Increasing order of oxidising power is:

Anhydrous ferric chloride is prepared by

Which of the following arrangements does not represent the correct order of the property stated against it?

Which of the following ions will exhibit colour in aqueous solutions?

The number of ions formed on dissolving one molecule of $\mathrm{FeS}{\mathrm{O}_4}{\left( {\mathrm{N}{\mathrm{H}_4}} \right)_2}\mathrm{S}{\mathrm{O}_4}.6{\mathrm{H}_2}\mathrm{O}$ is:

One of the important uses of ferrous sulphate is in the:

Which one of the following is an example of non-typical transition elements?

The prussian blue colour obtained in the Lassaigne's test for nitrogen is due to the formation of

Statement I: In square planar complex $\text{d}_{\text{x}^2-\text{y}^2}$ is higher in energy than $\mathrm{d}_{\mathrm{z}^2}$

Statement II: Ligand approach along $\mathrm{x}$ and $\mathrm{y}$ axis in square planar complex.

Thermal decomposition of zinc nitrate gives:

Ferric sulphate on heating gives:

Identify correct statements from below:
A. The chromate ion is square planar.
B. Dichromates are generally prepared from
chromates.
C. The green manganate ion is diamagnetic
D. Dark green coloured $\mathrm{K}_2 \mathrm{MnO}_4$ disproportionates
in a neutral or acidic medium to give
permanganate.
E. With increasing oxidation number of transition
metal, ionic character of the oxides decreases.
Choose the correct answer from the options given
below:

Which of the following statements is not true?

Assertion (A): $\mathrm{Ti}^{3+}$ acts as an oxidizing agent.

Reason (R): Due to inert pair effect, $\mathrm{Ti}^{+}$ is more stable than $\mathrm{Ti}^{3+}.$

‘Hydride gap’ is referred to which region of the Periodic Table?