Was first discovered in 1774 and it is the 5th most abundant metal in the earth’s crust. Used by pre-historic cave painters around 30 000 years ago?

Metal Guessing Challenge

Quiz
•
Science
•
Professional Development
•
Hard
Thebe Mokone
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon
Manganese
Molydenum
Cadmium
2.
MULTIPLE SELECT QUESTION
30 sec • 3 pts
Primary manganese ore mineral include:
Braunite
Vredenburgite
Jacobsite
Polandite
3.
MULTIPLE SELECT QUESTION
30 sec • 2 pts
Manganese minerals are widely distributed as:
Stomatolite
Rhodochrosite
Khandalite
Pyrulosite
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is/are not true about manganese?
Essential human dietary element?
Important for muscle development
Important for bone formation
Important in macronutrient metabolism
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manganese is too brittle to be of much use as a pure metal? Thus, it is most commonly used in alloys, such as steel. The extremely strong manganese steel alloy used for railway lines contains:
13% Mn
1% Mn
20% Mn
5% Mn
6.
MULTIPLE SELECT QUESTION
30 sec • 4 pts
Which of the following countries are the main manganese producing countries in the world?
Gabon
Russia
China
South Africa
Australia
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The melting point of manganese is:
1350 ͦC
1425 ͦC
1246 ͦC
1440 ͦC
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