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प्रश्न
Why is diamond clear and hard while graphite is soft?
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उत्तर
Carbon atoms in diamond are bonded in a strong tetrahedron pattern making it hard and clear whereas carbon atoms in graphite are bonded in weak covalent bonds making it soft and black.
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संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Distinguish between the following:
Acid Igneous Rocks and Basic Igneous Rocks.
State the types of rocks for the formation of which the following process is involved.
Formation of large crystals, coarse texture and slow cooling and compaction.
State the chief characteristics of metamorphic rocks.
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
Give one example of an area of: Metamorphic rocks,
Mention a few specimens of magnificent rock-cut architecture in India?
What are metamorphic rocks?
______ into slate caused by thermal metamorphism.
Sedimentary rocks are called stratified rocks.
