alleryRubber is harder than sponge. How does rubber compare with iron?
ARubber is harder than iron
BRubber is equally hard as iron
CRubber is softer than iron
DRubber cannot be compared at all
Answer & Solution
Correct answer: C. Rubber is softer than iron
1. Hardness and softness are relative properties.
2. Rubber is harder than sponge but softer than iron.
3. So iron is the harder of the two, and a comparison is possible.
_Source: NCERT Curiosity Class 6 Science, Ch 6, 6.3.2 Which materials are hard?_
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?Which metal is thought to have been the first refined, about 11,000 years ago?What is an alloy in the context of metals?