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प्रश्न
Why are carbon and its compounds used as fuels?
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उत्तर
The following explanations explain why fuels made of carbon and its compounds are used:
- Because of their high hydrogen and carbon content, they provide combustion with a significant amount of heat.
- Fuel-grade carbon compounds are straightforward to work with and have high calorific values and ideal ignition temperatures.
- There is control over their combustion. Carbon and its components are therefore employed as fuels.
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संबंधित प्रश्न
Write the molecular formula of the 2nd and 3rd member of the homologous series whose first member is ethene.
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.
Fill in the blank
................. is present in both living and non-living things.
Name the products formed when:
wood is burnt in the absence of air.
Give two uses for the following:
sugar charcoal
FILL IN THE BLANK
Carbon atom has ................... electrons in its valence shell.
Name a gas which, though a compound of carbon, is not studied under organic chemistry.
Name of the following compounds :


List the conclusions you will draw while studying the following properties of ethanoic acid :
(a) Odour
(b) Solubility in water
(c) Effect on litmus paper
(d) Reaction with sodium hydrogen carbonate
State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]
Explain the term ‘dry ice’. State its application.
Give a balanced equation for the following conversion: [In one or two steps]
A metallic oxide to calcium carbonate.
Give reason for the following:
Both CO2 & SO2 turn lime water milky. Moist potassium permanganate paper, helps in distinguishing the two gases.
Higher Order Thinking Skill.
Why do carbon exist mostly in combined state?
Carbon is one of the most important ______ elements.
Carbon monoxide displaces ______ from hemoglobin.
Which of the following is highly toxic?
The carbon cycle is the ______ cycle.
