Chemistry > p Block Elements > 7.0 Compounds of Carbon
p Block Elements
1.0 Group $13$ – The Boron Family
2.0 Boron
3.0 Compounds of boron
4.0 Compounds of Aluminium
5.0 Group $14$ – The Carbon family
6.0 Allotropes of Carbon
7.0 Compounds of Carbon
8.0 Properties of Silicon
9.0 Group $15$-The Nitrogen Family
10.0 Oxides of nitrogen
10.1 Nitrogen Oxide $N_2O$ or Laughing gas (Neutral)
10.2 Nitric Oxide $NO$ (Neutral)
10.3 Nitrogen trioxide $N_2O_3$
10.4 Nitrogen dioxide or Di-nitrogen tetroxide $NO_2$ or $N_2O$
10.5 Nitrogen pentaoxide $N_2O_5$
11.0 Oxyacids of Nitrogen
11.1 Nitric acid $HNO_3$
11.2 Oxidation of Metalloid and Inorganic compounds by Nitric acid
11.3 Action of Metals & Proteins
12.0 Phosphorus
13.0 Oxygen
14.0 Sulphur
7.1 Carbon Monoxide $(CO)$
10.2 Nitric Oxide $NO$ (Neutral)
10.3 Nitrogen trioxide $N_2O_3$
10.4 Nitrogen dioxide or Di-nitrogen tetroxide $NO_2$ or $N_2O$
10.5 Nitrogen pentaoxide $N_2O_5$
11.2 Oxidation of Metalloid and Inorganic compounds by Nitric acid
11.3 Action of Metals & Proteins
Preparation:
1. On small scale: Pure $CO$ is prepared by dehydration of formic acid with concentrated $H_2SO_4$
$$HCOOH\mathop \to \limits^{conc.{H_2}S{O_4}} {H_2}O + CO$$
2. $CO$ is formed due to incomplete combustion of carbon. $$2C + {O_2}\mathop \to \limits^\Delta 2CO$$
3. On commercial scale: Prepared by the passage of air over hot coke, a mixture of $CO$ and $N_2$ is produced called producer gas.
Properties:
- Colourless, odourless and water soluble gas.
- Burns with blue flame (due to the formation of $CO_2$).
- $CO + C{l_2} \to COC{l_2}\left( {phosgene} \right)$
- With Transition metals form metal carbonyls. $$Ni + 4CO \to Ni{(CO)_4}$$
- The highly poisonous nature of $CO$ arises because of its ability to form a complex with hemoglobin, which is more stable than the oxygen-hemoglobin complex which may cause death.
