p block elements

Question 1

why does Ga have small size

Answer 1

Poor shielding of 3d e’s

Question 2

In Boron family, at. radius order

Answer 2

B<Ga<Al<In<Tl

Question 3

Order of IE in boron family

Answer 3

B>Tl>Ga>Al>In

Question 4

Order of EN in boron family

Answer 4

B>Tl>In>Ga>Al

Question 5

Boron

Answer 5

non metal, hard, high MP & BP, IE & EN, forms ionic but covalent cmpds

Question 6

Lowest MP in boron family in

Answer 6

Ga

Question 7

Boron family prop

Answer 7

Soft metals, high conductivity, low MP & BP

Question 8

MP order in boron familiy

Answer 8

B>Al>Tl>In>Ga

Question 9

BP in boron family

Answer 9

decreases down

Question 10

density in boron family

Answer 10

increases down

Question 11

+3 stability in boron family

Answer 11

Al>Ga>In>Tl

Question 12

+1 stability in boron family

Answer 12

opp of +3

Question 13

Tl +3 is a ____ agent

Answer 13

oxidising

Question 14

IE in carbon family

Answer 14

C>Si>Ge>Pb>Sn

Question 15

MP in carbon family

Answer 15

More than B family
C>Si>Ge>Pb>Sn

Question 16

BP in carbon family

Answer 16

decreases down

Question 17

density order in carbon family

Answer 17

Si<C<Ge<Sn<Pb

Question 18

OS of Carbon

Answer 18

-4 to +4

Question 19

-4 stability in carbon family

Answer 19

decreases down due to increases in size

Question 20

+4 stability in carbon family

Answer 20

decreases down due to inert pair effect

Question 21

+4 order in carbon family

Answer 21

Si>Ge>Sn>Pb

Question 22

When size of X increases, stability with Si

Answer 22

decreases

Question 23

Covalent char increase with

Answer 23

decrease in size

Question 24

Ionic dihalides order

Answer 24

CX2<SiX2<GeX2<SnX2<PbX2

Question 25

Sn 2+ is a _______

Answer 25

reducing agent

Question 26

Order of tetrahalides

Answer 26

MF4>MCl4>MBr4>MI4

Question 27

Why is PbI4 unknown?

Answer 27

Inert pair effect

Question 28

Order of catenation

Answer 28

C»Si>Ge=Sn