alleryWhich metal is thought to have been the first refined, about 11,000 years ago?
AAluminium
BSodium
CCopper
DTitanium
Answer & Solution
Correct answer: C. Copper
1. The history of refined metals begins in ancient times.
2. It is thought to begin with copper about 11,000 years ago.
3. Sodium was discovered only in 1809, and aluminium and titanium came much later.
_Source: Wikipedia, Metal, Lead section_
Keep practising Materials Around Us
Browse all Materials Around Us questions for CTET, or explore more Science topics.
Related questions
Most plastics are produced from which raw sources?Polylactic acid is a popular biodegradable plastic. From which kind of material is it deriWhich use accounts for the largest share, about 40 percent, of plastic?Which plastic is widely used in pipes and construction because of its strength and durabilWho invented Bakelite, the world's first fully synthetic plastic, in 1907?Plastics are composed primarily of which kind of substances?What is an alloy in the context of metals?What is the science of metals called?