Uses, Producers, and Minerals

Question 1

Transitor, used in alloys, phosphor in fluorescent lamps
a. Germanium
b. Platinum
c. Palladium
d. Beryllium

Answer 1

Germanium

Question 2

Dentistry, Jewelry, alloys for electrical contacts, medical/laboratory instruments, production of diesel engines, hydrogen fuel cells
a. Germanium
b. Platinum
c. Palladium
d. Beryllium

Answer 2

Platinum

Question 3

Jewelry, catalytic converters for cars, fuel cells for e-vehicles, used to make laptops/smartphones
a. Germanium
b. Platinum
c. Palladium
d. Beryllium

Answer 3

Palladium

Question 4

Structural material for high-speed aircraft, missiles, spacecraft, and communication satellites
a. Germanium
b. Platinum
c. Palladium
d. Beryllium

Answer 4

Beryllium

Question 5

Electronic circuits, semiconductors, and light-emitting diode (LED)
a. Gallium
b. Zirconium
c. Tantalum
d. Selenium

Answer 5

Gallium

Question 6

Crucibles, furnace linings, abrasives
a. Gallium
b. Zirconium
c. Tantalum
d. Selenium

Answer 6

Zirconium

Question 7

Photocells, solar cells, photocopiers
a. Gallium
b. Zirconium
c. Tantalum
d. Selenium

Answer 7

Selenium

Question 8

Capacitors and High power resistors
a. Gallium
b. Zirconium
c. Tantalum
d. Selenium

Answer 8

Tantalum

Question 9

Dental fillings, chemical industry catalyst
a. Mercury
b. Cadmium
c. Arsenic
d. Tungsten

Answer 9

Mercury

Question 10

Battery, solar cells
a. Mercury
b. Cadmium
c. Arsenic
d. Tungsten

Answer 10

Cadmium

Question 11

Doping agent in semiconductors for SSD
a. Mercury
b. Cadmium
c. Arsenic
d. Tungsten

Answer 11

Arsenic

Question 12

Electrodes, filaments, alloys
a. Mercury
b. Cadmium
c. Arsenic
d. Tungsten

Answer 12

Tungsten

Question 13

Magnets, alloys are made into jet turbines and gas turbine generators
a. Cobalt
b. Rare Earth Elements
c. Titanium
d. Molybdenum

Answer 13

Cobalt

Question 14

Catalysts, air pollution control, illuminated screens on electronic devices, and the polishing of optical-quality glass
a. Cobalt
b. Rare Earth Elements
c. Titanium
d. Molybdenum

Answer 14

REE

Question 15

Surgical implants/replacements, alloys used in aircrafts
a. Cobalt
b. Rare Earth Elements
c. Titanium
d. Molybdenum

Answer 15

Titanium

Question 16

Alloyed with steel to increase hardness, strength, electrical conductivity and resistance to corrosion and wear
a. Cobalt
b. Rare Earth Elements
c. Titanium
d. Molybdenum

Answer 16

Molybdenum

Question 17

Used to coat other metals to prevent corrosion
a. Molybdenum
b. Tin
c. Lead
d. Zinc

Answer 17

Answer: Tin

Molybdenum - prevents corrosion also but as alloy not coating
Zinc - Galvanishing other metals to prevent rust

Question 18

Fireproofing
a. Mica
b. Asbestos
c. Graphite
d. Silicon

Answer 18

Answer: Asbestos

Mica - Electical insulators
Graphite - battery, pencil, nuclear reactor stablizer
Silicon - Transitors, computer chips, solar cells

Question 19

Added to molten iron and steel to remove sulfur
a. Chromium
b. Molybdenum
c. Manganese
d. Magnesium

Answer 19

Magnesium

Note: Manganese also desulfurize steel but not in a molten setting

Question 20

Minera Escondida (World’s largest copper mine) is found where?
a. Chile
b. Indonesia
c. Laos
d. Myanmar

Answer 20

Chile

Question 21

Grasberg Mine (2nd Largest Gold mine) is found where?
a. Chile
b. Indonesia
c. Laos
d. Myanmar

Answer 21

Indonesia

Question 22

2nd top producer of copper and 3rd top producer of coal in ASEAN
a. Vietnam
b. Laos
c. Malaysia
d. Myanmar

Answer 22

Laos

Question 23

1st top producer of tungsten in ASEAN and 2nd in the world; World’s top Jade producer
a. Vietnam
b. Laos
c. Malaysia
d. Myanmar

Answer 23

Myanmar