P Block 5

Question 1

SO2 is reducing /oxidizing and TeO2 is reducing/oxidising

Answer 1

SO2 is reducing

teO2 is oxidizing

Question 2

Reducing property of grp 16 oxides increases/decreases down the grp

Answer 2

decreasing

Question 3

SF4,TeF4,SeF4 are Solid/liquid/gas

Answer 3

SF4:- Gas

TeF4:- Solid

SeF4:- Liquid

Question 4

Why is SF6 exceptionally stable

Answer 4

steric reasons

Question 5

Al2O3 with HCl

Answer 5

Question 6

SO2+O2 forms and the catalyst used here is

Answer 6

it forms SO3 and the catalyst used V2O3

Question 7

FeSO4 on heating forms

Answer 7

Question 8

HSO4- on electrolysis forms

Answer 8

H2S2O8

Question 9

Ozone color in gas,liquid,solid

Answer 9

gas: - pale blue
liquid: - dark blue
solid: - violet-black

Question 10

NO with O3 forms

Answer 10

NO2 + O2

Question 11

Alpha S color and how is it formed

Answer 11

yellow color

formed on evaporation the solution on roll sulphur in CS2

Question 12

Who has more MP alpha or beta S

Answer 12

beta S

Question 13

Above which temperature does alpha S turns beta S and what type of temperature is it called?

Answer 13

369 K

transition temperature

Question 14

S8 structure

Answer 14

Question 15

When moist; SO2 behaves as

Answer 15

reducing agent

Question 16

SO2+H2O

Answer 16

Question 17

S3O9 structure

Answer 17

Question 18

what impurities can be founf while purifying H2SO4

Answer 18

Arsenic Compounds

Question 19

SO3 with H2SO4 forms

Answer 19

H2S2O7

Question 20

H2SO4 is a strong/weak dehydrating agent

Answer 20

strong

Question 21

EA order of Halogens

Answer 21

Question 22

Bond energy order of Halogens

Answer 22

Question 23

MP and BP order of Halogens

Answer 23

Question 24

Color of halogens

Answer 24

Question 25

OS of +4 and +6 occurs which halogen and in what forms

Answer 25

it occurs in of chlorines and bromine as oxoacids

Question 26

Strongest oxidizing halogen is

Answer 26

F2

Question 27

Acidic order of halogen hydrides

Answer 27

Question 28

The fluoride forms which two type of oxides and which his thermodynamically stable

Answer 28

Question 29

Chlorine oxides list and what are they oxidizing or reducing

Answer 29

they are highly oxidizing and explosive

Question 30

Cl2 with cold NaOH

Answer 30

Question 31

Bromine Oxides and in what condition does it exists

and are they reducing or oxidsing agents?

Answer 31

it exists in low temperature

oxidising agents

Question 32

MnO2 with HCl

Answer 32

MnCl2 + Cl2 + H2O

Question 33

NaCl with MnO2 and H2SO4 forms

Answer 33

MnCl2 + NaHSO4 + H2O + Cl2

Question 34

melting/boiling point order of grp 16 hydrides

Answer 34

Question 35

Al2O3 with NaOH

Answer 35

Question 36

S6 structure

Answer 36

Question 37

Halogen hydride MP and BP

Answer 37

Question 38

O2F2 + Pu and where is this reaction?

Answer 38

PuF6

this reaction is used to remving plutonium as PuF6 from spent nuclear fuel

Question 39

ClO2 is used in

Answer 39

paper pulp bleaching agent

and in water treatment

Question 40

Cl2 with Hot NaOH

Answer 40

Question 41

iodine oxides and whats used in carbon monoxide estimation

Answer 41

I2O5

Question 42

a fact on iodine oxides

Answer 42

they are insoluble solids and decomposes on heating

Question 43

which sulphur is more stable in room temperature

Answer 43

alpha sulphur

Question 44

whats rhombic and whats monoclinic sulphur

Answer 44

alpha sulphur is rhombic sulphur

beta sulphur is monoclinic sulphur

Question 45

dipole moment order of methyl halides

Answer 45