Please enable JavaScript.
Coggle requires JavaScript to display documents.
carbon and its compounds - Coggle Diagram
carbon and its compounds
Carbon monoxide
properties
- it is a colorless, odourless, and tasteless gas and highly poisonous gas.
- it is produced due to imcomplete buring of organic mater
- it is sparingly soluble in water, but is soluble in ethanol and on benzene.
- it is a thermally stable gas and does not decompose even at high temperature.
- it is a good reducing agent. It reduces oxides of less reactive metals to their respective metals and gets oxidized to carbon dioxide.
- It is inflammable and highly toxic gas. Can cause death by suffocation.
Uses
- it is an important industrial gas and is widely used as a fuel.
- it is used as a reducing agent in the chemical industry.
preparation
- When carbon is burned in limited supply of oxygen, carbon monoxide is formed.
- When formic acid reacts with conc. sulphuric acid, we get carbon monoxide and water.
- When oxalic acid reacts with conc. sulphuric acid, carbon monoxide is formed.
- Carbon monoxide is collected by the downward displacement of water.
A poisonous gas
- carbon monoxide is a highly poisonous gas.
- carbon monoxide has high affinity for haemoglobin, present in red blood cells.
- carbon monoxide when present in air, combines with haemoglobin to form carboxy haemoglobin. This prevent oxygen from binding with haemoglobin and forming oxy haemoglobin.
-
Carbon dioxide.
uses of carbon dioxide
- it is dissolved in aerated drinks under pressure
- it is used to make carbogen- a mixture of oxygen and carbon dioxide gas which is used for artificial respiration
- It is used in fire extinguishers: There r 2 types of fire extinguishers
1- soda- acid fire extinguishers
2 Dry ice fire extinguishers
- Carbon dioxide cuts off the supply of oxygen and puts off the fire.
-
PROPERTIES
- it is gas at room temperature
Carbon dioxide is a colorless, odourless gas with a sour (acidic) taste.
- It is fairly soluble in water
- Aquatic plants use dissolved C02 in water for photosynthesis
tests for carbon dioxide
- Pass carbon dioxide through lime water. It turns milky, indicating the presence of Carbon dioxide
- The flame of candle extinguishes, when introduced in the jar of carbon dioxide . This shows that carbon dioxide is neither combustible nor does it support combustion.
-
-
Fuel
- the substances which easily catch fire and burn are called inflammable substances.
- We all know oxygen is required for burning. This process of burning in presence of air, chemically is called combustion.
Wood, Charcoal, petrol, natural gas, diesel all are combustible substances, they all contain carbon.
- On burning fuels like petrol, wood, etc, heat is produced. The substances which produce energy in the form of heat on burning are called fuels.
-