Kerala Board Solutions for Chapter: The World of Carbon, Exercise 2: Exercise 2

Identify the statement given below is related to carbon monoxide or carbon dioxide.

Formed as a result of complete combustion of carbon compounds.

Identify the statement given below is related to carbon monoxide or carbon dioxide.

Can be prepared from carbonates and bicarbonates.

Identify the statement given below is related to carbon monoxide or carbon dioxide.

Is a component of producer gas and water gas.

Write the chemical formula of the calcium carbonate.

$\mathrm{A}: {\mathrm{Ca}}_2{\mathrm{CO}}_3 \mathrm{B}: {\mathrm{CaSO}}_4 \mathrm{C}: {\mathrm{CaCO}}_3 \mathrm{D}: {\mathrm{Ca}}_2{\mathrm{SO}}_4$ (Enter your correct answer as $\mathrm{A}, \mathrm{B}, \mathrm{C} \mathrm{or} \mathrm{D}$)

Which gas is formed when calcium carbonate reacts with acids?

What is the name of an aqueous solution of ${\mathrm{CO}}_2$ gas?

Graphite, which is an allotrope of carbon, is a conductor of electricity. But diamond, another allotrope is not a conductor of electricity. Why?

Write the structure of a straight chain and a ring hydrocarbon having four carbon atoms.