Transition Elements

Question 1

All d-block elements are metals except for

Answer 1

Mercury

Question 2

D-block also known as

Answer 2

Outer transition elements

Question 3

How many D-block elements?

Answer 3

40

Question 4

F-block elements also known as

Answer 4

Inner transition elements

Question 5

Number of F-block elements

Answer 5

28

Question 6

F-block elements consist of

Answer 6

Lanthanide series and Actinide series

Question 7

Lanthnide and Actinide series are also known as

Answer 7

Rare earth elements

Question 8

Elements after Uranium-92 are called

Answer 8

Man-made, artificial, trans-uranic elements

Question 9

IIIA (D1) is by definition a transition element, _______________. Which element?

Answer 9

but not by properties. Sc

Question 10

IIB (D9/D10) and IIIA (D1) are called ________. Which element for IB and IIB?

Answer 10

Non typical elements. Cu and Zn

Question 11

Electronic config of Cr (instead of) and Cu (instead of)?

Answer 11

Cr: 4s1 3d5 instead of 4s2 3d4
Cu: 4s1 3d10 instead of 4s2 3d9

Question 12

Irregular electronic configuration?

Answer 12

Cu and Cr

Question 13

Order of strength of orbitals bonds?
C = Completely filled
H = Half filled
P = Partially filled

Answer 13

C-C > C-H > H-H > H-P > P-P

Question 14

Highest Binding Energy?

Answer 14

Vandium

Question 15

Binding Energy trend? skip

Answer 15

skip

Question 16

MP and BP increases until __ . Then ___ increases a little but continues to decrease.

Answer 16

Mn. Fe

Question 17

When oxidation state large,

Answer 17

Oxidation power high

Question 18

High oxidation power means

Answer 18

Covalent character high
Acidic character high

Question 19

Maximum ox state of any d block element

Answer 19

8+

Question 20

8+ oxidation state in which elements in what molecules

Answer 20

Os and Ru in OsO4 and RuO4

Question 21

In 3d series ___ is max oxidation state shown by ___

Answer 21

7+ in Mn

Question 22

___ does not show variable oxidation state. Its ox state is ___

Answer 22

Zn is 2+

Question 23

Substance attracted by a magnetic field is

Answer 23

Paramagnetic

Question 24

Paramagnetic elements

Answer 24

Fe Mn Cu

Question 25

Substance weakly repelled or unaffected by magnetic field is

Answer 25

Diamagnetic

Question 26

Diamagentic elements

Answer 26

Sc Ti Zn

Question 27

Substance that can be made into a magnet is

Answer 27

Ferromagnetic

Question 28

Natural magnet

Answer 28

Fe3O4 (Lodestone)

Question 29

Fe2+ and Fe3+ are used to catalyse reaction between

Answer 29

Peroxythiosulphide ion and iodide ion

Question 30

Ethanol —> Acetaldehyde uses which catalyst

Answer 30

Cu

Question 31

____ used during conversion of SO2 to SO3 in the contact process of H2SO4

Answer 31

V2O3

Question 32

Alloy steel made up of

Answer 32

Fe <— Cr, Mn, Ni

Question 33

Brass made up of

Answer 33

Cu <— Zn (20-40%)

Question 34

Bronze made up of

Answer 34

CU <— Sn (lead)

Question 35

18 Karat Gold made up of

Answer 35

AU <— Cu

Question 36

Cast iron made up of how much % of C

Answer 36

4%

Question 37

Steel is % of C

Answer 37

0.2-2%

Question 38

Wrought iron is which % of C

Answer 38

0.2%

Question 39

CuSO4 . 5H2O is the color

Answer 39

Blue

Question 40

CuSO4 anhydrous is the color

Answer 40

Colorless. Because absorbs IR light (not visible)

Question 41

Blue elements

Answer 41

Cr, Cu, Co

Question 42

Green elements

Answer 42

Mn, Fe2+, Ni

Question 43

Yellow elements

Answer 43

Fe3+

Question 44

Purple elements

Answer 44

Ti3+

Question 45

Colorless elements

Answer 45

Sc, Ti4+, Zn

Question 46

Bidentrate ligands examples

Answer 46

Ethylene diamine and oxalate ion

Question 47

Tridentrate ligand example

Answer 47

EDTA