Write true or false for the statement. Rewrite the false statement correctly:

Wood charcoal is also known as animal charcoal.

Write true or false for the statement. Rewrite the false statement correctly:

Charcoal has a higher calorific value than wood.

Complete and balance the following equation:

$\mathrm{C}+{\mathrm{H}}_2\mathrm{O} \stackrel{}{\to }$

Complete and balance the following equation:

${\mathrm{SiO}}_2+\mathrm{C} \stackrel{}{\to }$

Complete and balance the following equation:

${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11} \stackrel{\mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }$

Complete and balance the following equation:

${\mathrm{CO}}_2+\mathrm{C} \stackrel{}{\to }$

Answer the following question:

Why diamond sparkles?

Name the impurity present in Emerald.

Answer the following question:

Draw and explain the structure of a diamond.