14th Group

Question 1

Which prop ⬆️ top to bottom?

Answer 1

Size, atomic weight, covalent radius, Thermal stability

Question 2

Which prop⬇️ top to bottom

Answer 2

BP

Question 3

Name 14thG

Answer 3

C, Si, Ge, Sn, Pd

Question 4

MP and IE and reason

Answer 4

C>Si>Ge>Pb>Sn
Poor screening of 4f and 4d electrons

Question 5

Density

Answer 5

Si<C(dia) <Ge<Sn<Pb

C(gra) <Si<Ge<Sn<Pb

Question 6

EN

Answer 6

C>Pb>Si=Ge=Sn

Question 7

Ionic radius

Answer 7

Si<Ge<Sn<Pb

Question 8

Abundance

Answer 8

Si>C>Sn>Pb>Ge
Trick: C and Si are friends(Sneh-Sn) whi went to Pub (Pb) with Ge

Question 9

Catenation

Answer 9

C>Si>Ge=Sn
Pb-big size

Question 10

Which are Metals, NM and metalloids

Answer 10

Metals- Sn, Pb
NM-C and Si
Metalloid-Ge

Question 11

OS

Answer 11

+4, +2

Question 12

Os is directly prop to

Answer 12

Stability, Acidic, Covalent

Question 13

Sn is

Answer 13

RA at +2

Question 14

Pd is

Answer 14

OA at +4

Question 15

SiF6, GeCl6, Sn(OH) 6 exists because

Answer 15

Vacant d orbital

Question 16

Sicl6 does not exist bcuz

Answer 16

Big size of Cl

Question 17

Hybriisation of CA

Answer 17

Sp3d2

Question 18

PBI4 does not exist due to

Answer 18

IPE

Question 19

Which is neutral?

Answer 19

CO

Question 20

Acidic?

Answer 20

Sio Co2
Geo Sio2
Geo2

Question 21

Amphoteric

Answer 21

Sno Sno2
Pbo Pbo2

Question 22

Only which one element reacts with water

Answer 22

Sn02-Cassiterite

Question 23

Reactivity order towards X2

Answer 23

Si<Ge<Sn<Pb

Question 24

Bond enthalpy order

Answer 24

C>Si>Ge>Sn

Question 25

Non metal oxides which are neutral

Answer 25

CO,N2O, NO

Question 26

Ionic nature in halides

Answer 26

F>Cl>Br>I

Question 27

What are isotopes of C

Answer 27

12C, 13c, 14C(Radioactive)