Find the odd man out:1. Propane, Methane, Ethene, Pentane.2. CH4, C2H6

1.	Find the odd man out:1. Propane, Methane, Ethene, Pentane.2. CH4, C2H6 , C3H8 , CaCO3.3. C2H2 , C3H8 , C2H4 ,CH44. Diamond, Fullerene, Graphite, Methane.5. Coal, Petroleum, Natural gas, Cotton6. Cotton, Silk, Proteins, Wool7. Carbohydrates, Coal, Proteins, Fats8. Peat, Charcoal, Lignite, Bituminous9. Lubricants, Electrodes, Ornaments, Arc Lamps
Answer» 1. Ethene. It is an unsaturated hydrocarbon with double bond between two carbon atoms while rest are saturated hydrocarbons with single bond between two carbon atoms. 2. CaCO₃. It is a salt which is an inorganic’ compound, while rest are hydrocarbon compounds, i.e. organic compounds. 3. C₂H₂ . It is an unsaturated hydrocarbon with triple bonds while rest are saturated hydrocarbons with single bonds between two carbon atoms. 4. Methane. It is a marsh gas while rest are allotropes of carbon. 5. Cotton. Cotton is a natural fibre while rest all are fossil fuels. 6. Proteins. Proteins are carbonaceous nutrients while rest all are natural fibres. 7. Coal. Coal is a fossil fuel while rest all are carbonaceous nutrients. 8. Charcoal. Charcoal is a non-crystalline form of carbon while rest all are types of coal. 9. Ornaments. Ornaments are made from diamonds while rest all are made from graphite.

Find the odd man out:1. Propane, Methane, Ethene, Pentane.2. CH4, C2H6 , C3H8 , CaCO3.3. C2H2 , C3H8 , C2H4 ,CH44. Diamond, Fullerene, Graphite, Methane.5. Coal, Petroleum, Natural gas, Cotton6. Cotton, Silk, Proteins, Wool7. Carbohydrates, Coal, Proteins, Fats8. Peat, Charcoal, Lignite, Bituminous9. Lubricants, Electrodes, Ornaments, Arc Lamps

Answer»

1. Ethene. It is an unsaturated hydrocarbon with double bond between two carbon atoms while rest are saturated hydrocarbons with single bond between two carbon atoms.

2. CaCO₃. It is a salt which is an inorganic’ compound, while rest are hydrocarbon compounds, i.e. organic compounds.

3. C₂H₂ . It is an unsaturated hydrocarbon with triple bonds while rest are saturated hydrocarbons with single bonds between two carbon atoms.

4. Methane. It is a marsh gas while rest are allotropes of carbon.

5. Cotton. Cotton is a natural fibre while rest all are fossil fuels.

6. Proteins. Proteins are carbonaceous nutrients while rest all are natural fibres.

7. Coal. Coal is a fossil fuel while rest all are carbonaceous nutrients.

8. Charcoal. Charcoal is a non-crystalline form of carbon while rest all are types of coal.

9. Ornaments. Ornaments are made from diamonds while rest all are made from graphite.

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