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

Match the following? property metal (a) Element with highest second ionization enthalpy Δ i H 2 ( i ) Co (b) Element with highest third ionization enthalpy Δ i H 3 ( ii ) Cr (c) M in M ( CO ) 6 ( iii ) Cu (d) Element with highest heat of atomization Δ a H ( iv ) Zn ( v ) Ni

( a → iii ) , ( b → iv ) , ( c → ii ) , ( d → v )

( a → iii ),( b → i ),( c → v ),( d → iv )

( a → iv ) , ( b → i ) , ( c → ii ) , ( d → iii )

( a → v ) , ( b → iv ) , ( c → i ) , ( d → iii )

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Among the 3d-transition series, the $IE$

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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

In $d$ -block elements the radii of elements of third transition series are similar to those of the elements of second transition series. Give reason.

MEDIUM

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

Discuss the changes in following properties of the first transition series: Ionisation series.

MEDIUM

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

Why

5 d

transition series elements have higher ionization enthalpies than

4 d

transition series element ?

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

Why does the density of transition elements increase from titanium to copper?

EASY

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

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The first ionization enthalpy of $3 d$ series elements is more than that of group $2$ metals

Reason (R): In $3 d$ series of elements successive filling of $d$ -orbitals takes place.

In the light of the above statements, choose the correct answer from the options given below:

MEDIUM

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

Discuss the changes in the following properties of first transition series: Atomic radii

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?

MEDIUM

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

How would you account for irregular variation of 1st and 2nd ionisation enthalpies in the 1st series of transition elements?

EASY

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

Cu(I) has

d^{10}

configuration, while

Cu (II)

had

d^{9}

configuration. Still, Cu(II) is more stable in an aqueous solution than Cu(I). Why?

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

MEDIUM

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

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 _____.

MEDIUM

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

The pair of metal ions that can give a spin only magnetic moment of

3.9 B M

for the complex

[M {(H_{2} O)}_{6}] C l_{2}

, is:

MEDIUM

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

Sentence (A) and its reason (R) is given below. For it which option is correct from given options?

Sentence (A): Atomic radii from $Cr$ to $Cu$ is almost similar.
Reason (R) : Shielding effect of entering electron in $3 d$ orbital decreases repulsion force of $4 s$ orbital electrons towards nucleus.

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:

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

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

MEDIUM

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

Ionic radii of

{Fe}^{2 +}

is less than ionic radii of

{Mn}^{2 +}

. Why?

MEDIUM

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

Match the following?

property	metal
(a) Element with highest second ionization enthalpy $(Δ_{i} H_{2})$	$(i) Co$
(b) Element with highest third ionization enthalpy $(Δ_{i} H_{3})$	$(ii) Cr$
(c) $M$ in $[M (CO)_{6}]$	$(iii) Cu$
(d) Element with highest heat of atomization $(Δ_{a} H)$	$(iv) Zn$
	$(v) Ni$

EASY

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

The correct order of the first ionization enthalpies is:

Among the 3d-transition series, the IE

Important Questions on The d- and f-Block Elements

Learn and Prepare for any exam you want !

Among the 3d-transition series, the $IE$