Chemical Industry Questions and Answers – Inorganic Chemical – Sea Floor Minerals

This set of Chemical Industry Multiple Choice Questions & Answers (MCQs) focuses on “Inorganic Chemical – Sea Floor Minerals”.

1. Minerals are mined from all environments except from the ______________
a) ocean beaches
b) sub-sea floor rocks
c) continental shelves
d) deep sea floor
View Answer

Answer: d
Explanation: Minerals are mined from all environments except from the deep sea floor area even though it has large mineral deposits (clays, siliceous oozes, manganese nodules and so on) due to lack of advanced technology.

2. Oil and gas deposits are found in ________ region.
a) ocean beaches
b) sub-sea floor rocks
c) continental shelves
d) deep sea floor
View Answer

Answer: b
Explanation: Oil and gas deposits are found in sub-sea floor rock region along with sulfur, iron ore, salt, coal etc. Ocean beaches have platinum, gold, diamond, quartz etc.

3. Which separators are used to separate oversize pebbles and undersize clay particles if minerals such as monazite, zircon are present?
a) Revolving trommel
b) Shaking tables
c) Humphrey spirals
d) Magnetic and electrostatic separators
View Answer

Answer: c
Explanation: Generally revolving trommel is used for separation. If minerals like rutile and tin are present shaking tables or Humphrey spirals are used and if minerals like monazite, zircon are present magnetic and electrostatic separators are used.
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4. Which impurity of manganese nodules is leached using H2SO4 as solvent at temperature of 77°F?
a) Cobalt
b) Copper
c) Nickel
d) Iron
View Answer

Answer: b
Explanation: Copper is put into solution when manganese nodules are leached using H2SO4 as solvent at temperature of 77°F. When temperature is around 120°F, nickel goes into solution.

5. A differential leaching process is used for processing manganese nodules.
a) True
b) False
View Answer

Answer: a
Explanation: The statement is true since copper is removed in first leaching, nickel in second leaching, and then cobalt is removed similarly by altering conditions.

Sanfoundry Global Education & Learning Series – Chemical Industry.

To practice all areas of Chemical Industry, here is complete set of 1000+ Multiple Choice Questions and Answers.

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If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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