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The true statement for an element with atomic number $46$ is :

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Important Questions on The d- and f-Block Elements

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The outer electronic configuration of Chromium

(Cr)

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Which of the following statements is incorrect for pair of elements Zr - Hf?

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Identify the correct statement(s) from the following:
i) There are four

d

-block series.
ii) Total d-block elements are

40

.
iii) Third d-block series starts with Lanthanum and ends with mercury.
iv) All the d-block members are metals and found in nature.

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The electronic configuration of actinides is:

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

In which of the following pairs, the outermost electronic configuration will be the same?

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Which of the following ions will give colourless aqueous solution?

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The electronic configuration of a transition element

X

+ 3

state is

[Ar] 3 d^{6} .

Its atomic number is ______

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The electronic configuration of

Pt

(atomic number

78

) is

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

How many unpaired electrons are present in a

{Fe}^{2 +}

ion?

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Number of electrons that Vanadium

(Z = 23)

has in p-orbitals is equal to:

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The most abundant transition metal in human body is

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

The basic character of the transition metal monoxide follows the order

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Which one of the following element do not occur in nature?

EASY

Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Match List-I with List-II and select the correct answer using the codes given below:

List-I		List-II
(A)	Electronic configuration of americium.	1.	Corrosive Sublimate
(B)	$BM$ of ${Sm}^{3 +}, {La}^{3 +}, {Gd}^{3 +}$	2.	$[Rn] 5 f^{7} s^{2}$
(C)	$TiC l_{4} \overset{H_{2} O}{\to}$ Amphoteric white solid	3.	$5.9, 0.0, 7.94$
(D)	${Hg}_{2} C l_{2} \overset{aqua - regia}{\to}$ Compound used in antiseptic and dressing skin	4.	${TiO}_{2}$