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
7.2 Carbon Dioxide $(CO_2)$
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: It is mostly prepared by decomposition of carbonates and bicarbonates.
- $CaC{O_3} + 2HCl \to CaC{l_2} + {H_2}O + C{O_2}$
- $CaC{O_3}\mathop \to \limits^\Delta CaO + C{O_2}$
- Carbon dioxide can be obtained as a solid in the form of dry ice by allowing the liquefied $CO_2$ to expand rapidly. Dry ice is used as a refrigerant for ice-cream and frozen food.
Properties:
- Colourless, odourless and acidic.
- With water, it forms carbonic acid, $H_2CO_3$ which is a weak dibasic acid.
- $2NaOH + C{O_2} \to N{a_2}C{O_3} + {H_2}O$
