GROUP 1-4

Question 1

Use of nitrogen in plant

Answer 1

PLANT NITROGEN FIXATION

Question 2

Liquid nitrogen is used as

Answer 2

REFRIGERANT

Question 3

Name the test used in Arsenic

Answer 3

GUTZEIT TEST

Question 4

This compound is a gas that is used as a fuel in space shuttle launches

Answer 4

N2O3 OR DINITROGEN

Question 5

Variety of phosphorus which is non-poisonous

Answer 5

RED PHOSPHORUS

Question 6

The most reactive form of phosphorus

Answer 6

WHITE PHOSPHORUS

Question 7

A mineral phosphate which is a source of phosphorus

Answer 7

APATITE

Question 8

Phosphorus is also called as

Answer 8

ST. ELMO’S FIRE

Question 9

Who discovered the element Antimony?

Answer 9

NICOLAS LEMERY

Question 10

Dry air is composed of how many percent of carbon dioxide

Answer 10

0.039

Question 11

This is also called the ‘Bismuth Yellow’

Answer 11

BISMUTH OXIDE

Question 12

Who identified the element Arsenic?

Answer 12

ALBERTUS MAGNUS

Question 13

Nitrogen gas replace air in container for what solution?

Answer 13

PARENTERAL SOLUTION

Question 14

This element is a brittle white metal with a pinkish tinge

Answer 14

BISMUTH

Question 15

A brittle metal with low heat and electrical conductivity is Antimony. True or false

Answer 15

TRUE

Question 16

Bismuth subnitrate is the pink bismuth and used to treat temporary discomfort of the stomach.True or false

Answer 16

FALSE

Question 17

Antimony is the element called as the “Poison King.” True or false

Answer 17

FALSE

Question 18

A light-yellow spot is generated in the filter paper moistened with silver nitrate solution when arsenic is present. True or false

Answer 18

FALSE

Question 19

Give one element in which the phosphate buffer system is insoluble

Answer 19

SILVER

Question 20

Polonium was discovered by whom? Name one

Answer 20

MARIE CURIE

Question 21

Another term for Group VI-A, Group 16, and Oxygen Family

Answer 21

CHALCOGENS

Question 22

It refers to an inorganic compound of ferrous ion and selenide

Answer 22

IRON SELENIDE

Question 23

Pure antimony is utilized to manufacture specific semiconductor devices like infrared detectors and diodides.True or false

Answer 23

TRUE

Question 24

It is also known as a semi-metallic, lustrous, crystalline, brittle, silver-white element

Answer 24

TELLURIUM

Question 25

It possesses a crystal-like needle appearance

Answer 25

MONOCLINIC

Question 26

Give one example of a source of sulfur

Answer 26

FeS2 - IRON PYRITE

Question 27

What is the required temperature for sulfur to turn into sulfur vapor?

Answer 27

1000°C

Question 28

What is the other name for sublimed sulfur?

Answer 28

FLOWER OF SULFUR

Question 29

When did Joseph Priestley published his discovery in Oxygen?

Answer 29

AUGUST 1, 1774

Question 30

Give one use of Tantalum

Answer 30

Implants

Question 31

It is one of the main natural forms of selenium

Answer 31

SELENOMETHIONINE

Question 32

The commercial source of Niobium

Answer 32

COLUMBITE

Question 33

It is a transition metal that is soft, grey and ductile

Answer 33

NIOBIUM

Question 34

It is used to make orthopedic implants

Answer 34

POROUS TANTALUM COATINGS

Question 35

Imaginary element that may cause combustion or to give off burning

Answer 35

PHLOGISTON

Question 36

It is an acid used in the manufacture of phosphate fertilizers

Answer 36

SULFURIC ACID

Question 37

What is the source of Vanadium?

Answer 37

VANADINITE

Question 38

A state in which oxygen is not available in sufficient amounts or the lack of oxygen

Answer 38

HYPOXIA

Question 39

Blood circulation is retarded

Answer 39

STAGNANT

Question 40

Who is the second person that discovered the element of Vanadium?

Answer 40

NILS GABRIEL SEFSTROM