Question

The most stable form of carbon at high temperature is $X$. The $C - C $ bond length in diamond is $Y$ while $C - C$ bond length in graphite is $Z$.
\What are $X, Y$ and $Z$ respectively?

• A. Graphite, $1.42\, \mathring{A}, 1.54 \,\mathring{A}$
• B. Coke, $1.54\, \mathring{A}, 1.84 \,\mathring{A}$
• C. Diamond, $1.54 \,\mathring{A}, 1.42 \,\mathring{A}$
• D. Fullerene, $1.54 \,\mathring{A}, 1.54 \,\mathring{A}$

Answer 1

Answer: (C)

$X=$ Diamond, $Y= 1.54\, \mathring{A}, Z= 1.42 \, \mathring{A}$