Match the catalysts to the correct process. Catalyst Process A. T i C l 3 i. Wacker process B. P d C l 2 ii. Ziegler – Natta polymerisation C. C u C l 2 iii. Contact process` D. V 2 O 5 iv. Deacon’s process

A → i i , B → i , C → i v , D → i i i

A → i i i , B → i , C → i i , D → i v

A → i i i , B → i i , C → i v , D → i

A → i i , B → i i i , C → i v , D → i

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Important Questions on The d- and f-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Although Zirconium belongs to

4 d

transition series and Hafnium to

5 d

transition series even then they show similar physical and chemical properties because _____.

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Consider the hydrated ions of

T i^{2 +}, V^{2 +}, T i^{3 +}

and

S c^{3 +}

. The correct order of their spin-only magnetic moments is:

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Reason of lanthanoid contraction is:

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Which metal in the first series of transition metals exhibits $+ 1$ oxidation state most frequently and why?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Match the catalysts to the correct process.

	Catalyst		Process
A.	$T i C l_{3}$	i.	Wacker process
B.	$P d C l_{2}$	ii.	Ziegler – Natta polymerisation
C.	$C u C l_{2}$	iii.	Contact process`
D.	$V_{2} O_{5}$	iv.	Deacon’s process

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Why do transition elements form complexes ?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

The correct order of the first ionization enthalpies is:

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Out of the following transition elements, the maximum number of oxidation states are shown by

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

The transition elements that has the lowest enthalpy of atomisation is:

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Find the metallic and ferromagnetic substance.

MEDIUM

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

What is lanthanoid contraction?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Write down the electronic configuration of ${Cu}^{+}$ .

MEDIUM

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

How is the variability in oxidation states of transition metals different from that of the non-transition metals? Illustrate with examples.

HARD

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

What are interstitial compounds?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Give reason for transition elements and their compounds act as catalysts.

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Give reasons:
Iron has higher enthalpy of atomization than that of copper.

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Give reasons:

{Sc}^{3 +}

is a colourless in aqueous solution whereas

{Ti}^{3 +}

is coloured.

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Which of the following are the transition metal ions responsible for colour in ruby and emerald respectively?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

What is the general electronic configuration of

d

-block elements?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>General Properties of Lanthanoids

Silver atom has completely filled

d

orbitals

(4 d^{10})

in its ground state. How can you say that it is a transition element?

What is the journal entry for the issue of debentures at par?

Important Questions on The d- and f-Block Elements

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