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

MEDIUM

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Transition metals do not show the highest oxidation state with fluorine, but they do so with oxygen. What would be the proper reason for the same?

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Important Questions on The d- and f-Block Elements

EASY

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

When heated in air, brown copper powder turns black. This black powder would turn brown again when heated with

MEDIUM

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

Which group contains coloured ions out of

$(1) {Cu}^{2 +}$ $(2) {Ti}^{4 +}$ $(3) {Co}^{2 +}$ $(4) {Fe}^{2 +}$

HARD

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

The equation which is balanced and represents the correct product(s) is

HARD

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

Maximum number of covalent bonds formed by

N

and

P

are -

EASY

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

The highest value of the calculated spin only magnetic moment (in

BM

) among all the transition metal complexes is

EASY

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

The colour and magnetic nature of manganate ion

({MnO}_{4}^{2 -})

is-

HARD

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

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

EASY

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

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 d-Block Elements

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 d-Block Elements

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

MEDIUM

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

Identify the oxidation states of Titanium

(Z = 22)

and Copper

(Z = 29)

in their colourless compounds.

MEDIUM

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

Match the metal ions given in Column 'I' with the spin magnetic moments of the ions given in Column 'II'.

Column I	Column II
a. ${Co}^{3 +}$	i. $\sqrt{8} B . M .$
b. ${Cr}^{3 +}$	ii. $\sqrt{35} B . M .$
c. ${Fe}^{3 +}$	iii. $\sqrt{3} B . M .$
d. ${Ni}^{2 +}$	iv. $\sqrt{24} B . M .$
	v. $\sqrt{15} B . M$