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Question

Statement 1: Pure diamond is the hardest natural substance.

Statement 2: In diamond, every carbon atom is bonded to four neighbouring carbon atoms by covalent bonds.


Your Answer
A
Both statements are correct but statement 2 is not the correct reason for statement.
Correct Answer
B

Both statements are correct and statement 2 is the reason for statement 1.

Your Answer
C
Statement 1 is incorrect.
Your Answer
D
Statement 2 is incorrect.

Solution

The correct option is B

Both statements are correct and statement 2 is the reason for statement 1.


Diamond is an allotrope of carbon. In diamond, each carbon is covalently bonded to four other carbon atoms, making a rigid 3-D structure as shown below. These bonds are difficult to break, which makes diamond the hardest natural substance.

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