Uses

Question 1

Non inflammable light gas

Answer 1

He

Question 2

Filling balloons for meteorological observations

Answer 2

He

Question 3

Gas cooled nuclear reactors

Answer 3

He

Question 4

Cryogenic substance [experiments at low temp]

Answer 4

He

Question 5

Produce sustained superconducting magnet NMR spectormeter&MRI

Answer 5

He

Question 6

Diluent for oxygen in diving Apparatus DUE TO low solubility in blood

Answer 6

He

Question 7

Botanical garden [green house effect]

Answer 7

Ne

Question 8

Fluorescent bulb

Answer 8

Ne

Question 9

Discharge tube

Answer 9

Ne

Question 10

Filling electric bulbs

Answer 10

Ar

Question 11

Creates inert atmp in high temp metallurgical process (arc welding)

Answer 11

Ar

Question 12

Handling air sensitive substances in lab

Answer 12

Ar

Question 13

No significant use
Special purpose light bulbs

Answer 13

Xe kr

Question 14

Diffuses through commonly used lab materials [rubber glass]

Answer 14

Noble gases

Question 15

Bleaching wool pulp cotton textile

Answer 15

Cl2

Question 16

Extraction of gold and pt

Answer 16

Cl2

Question 17

Dyes drugs
Ccl4 chcl3 DDT refrigerant

Answer 17

Cl2

Question 18

Sterilizing drinking water

Answer 18

Cl2

Question 19

Poisonous gases
Phosgene COCl2
Tear gas ccl3No2
Mustard gas cl ch2 ch2 Sch2 ch2 cl

Answer 19

Cl2

Question 20

Manufacture of chlorine
NH4cl glucose from corn starch

Answer 20

Hcl

Question 21

Extracting glue from bones & purifying bone black

Answer 21

HCL

Question 22

In Medicine as lab reagent

Answer 22

Hcl

Question 23

Oxyacetylene welding

Answer 23

O

Question 24

Manufacturing steel

Answer 24

O

Question 25

Tremendous thrust in rocket

Answer 25

Hydrazine + liq O

Question 26

Refining petroleum and sugar

Answer 26

So2

Question 27

Bleach wool and slik

Answer 27

So2

Question 28

Disinfectant
Anti chlor
Preservative

Answer 28

So2

Question 29

Solvent for inorg and org chemicals

Answer 29

Liq so2

Question 30

OA in manufacture of potassium permanganate

Answer 30

O3

Question 31

Germicide
Disinfectant
Sterilizing water

Answer 31

O3

Question 32

Bleaching oil
Ivory
Flour Starch
[FIOS]

Answer 32

O3

Question 33

Nations Industrial strength
Judged by production and consumption of

Answer 33

H2SO4

Question 34

Manufacture of fertilizer
NH2s04
Superphosphate

Answer 34

H2so4

Question 35

Petroleum refining

Answer 35

H2SO4

Question 36

Manufacture of pigments paints dyestuff

Answer 36

H2so4

Question 37

Detergent industry

Answer 37

H2so4

Question 38

Metallurgical application
Enameling
Electroplating
Galvanizing
STORAGE BATTERY

Answer 38

H2so4

Question 39

Manufacture
Nitrocellulose product
Lab reagent

Answer 39

H2so4

Question 40

Manufacture of NH3 and other Industrial chemicals containing N

Answer 40

N2

Question 41

Calcium cyanamide [Industrial]

Answer 41

N2

Question 42

Inert atmp required
[Iron & steel Industry]
Inert diluent for reactive chemicals

Answer 42

N2

Question 43

Refrigerant to preserve biological materials
Food items

Answer 43

Liq N2

Question 44

Cryosurgery

Answer 44

N2

Question 45

manufacture of NH4NO3
FOR fertilizer

Answer 45

HNO3

Question 46

explosives and pyrotechnics

Answer 46

HNO3

Question 47

manufac
of
nitroglycerine
trinitrotoluene

Answer 47

HNO3

Question 48

pickling of stainless steel

Answer 48

HNO3

Question 49

oxidizer in rocket fuel

Answer 49

HNO3

Question 50

etching of metal

Answer 50

HNO3

Question 51

production of N fertilizers nh4nitrate/sulphate/phosphate& urea

Answer 51

NH3

Question 52

manufacture of nitric acid

Answer 52

NH3

Question 53

refrigerant

Answer 53

liq NH3

Question 54

manufacture of
sulphuric acid
sodium bisulphite
calcium bisulphite

Answer 54

so2