Find the odd one out.

Question 11 Mark

Lubricants, Electrodes, Ornaments, Arc Lamps

Answer

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

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Question 21 Mark

Peat, Charcoal, Lignite, Bituminous

Answer

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

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Question 31 Mark

Carbohydrates, Coal, Proteins, Fats

Answer

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

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Question 41 Mark

Cotton, Silk, Proteins, Wool

Answer

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

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Question 51 Mark

Coal, Petroleum, Natural gas, Cotton

Answer

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

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Question 61 Mark

Diamond, Fullerene, Graphite, Methane.

Answer

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

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Question 71 Mark

$C_2H_2, C_3H_8, C_2H_6, CH_4.$

Answer

$C_2H_2$. It is an unsaturated hydrocarbon with triple bonds while rest are saturated hydrocarbons with single bonds between two carbon atoms.

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Question 81 Mark

$CH_4, C_2H_6, C_3H_8, CaCO_3.$

Answer

$CaCO_3.$ It is a salt which is an inorganic’ compound, while rest are hydrocarbon compounds, i.e. organic compounds.

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Question 91 Mark

Propane, Methane, Ethene, Pentane.

Answer

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.

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Science Find the odd one out.

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