Question

Choose the correct statements about sugar charcoal:

• A. Sugar charcoal is used to prepare artificial diamonds
• B. Sugar charcoal is the purest form of amorphous carbon
• C. It is prepared by heating cane-sugar or glucose in absence of air
• D. Glucose in the presence of concentrated sulphuric acid produces sugar charcoal

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

Sugar charcoal is used to prepare artificial diamonds

B

Sugar charcoal is the purest form of amorphous carbon

C

It is prepared by heating cane-sugar or glucose in absence of air

D

Glucose in the presence of concentrated sulphuric acid produces sugar charcoal

Sugar charcoal is the purest form of amorphous carbon. It is prepared by heating cane-sugar or glucose in the absence of air. It can also be prepared by dehydration of cane-sugar or glucose in the presence of sulphuric acid $H_{2}S{O}_4$.

When cane-sugar is heated then:- $C_{12}{H}_{22}{O}_{11}\left(s\right)\stackrel{heat}{\to }12C\left(s\right)+11H_{2}O\left(g\right)$

When sugar charcoal is heated at $3000-{3500}^{circ}$ celsius then artificial diamond is formed.