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Carbon Nitrogen and their Compounds


7. 

The lowest percentage of carbon is present in

Answer : D. steel

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8. 

Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons?

Answer : A. Methane, Ethane, Propane, Butane

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9. 

Diamond is chemically

Answer : C. a pure carbon

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10. 

Steel contains

Answer : A. 0.1 to 2% carbon

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11. 

The state of hybridisation of carbon in methane is

Answer : B. sp3

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12. 

Estimation of nitrogen is done by

Answer : D. Kjeldahl's method

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