A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is

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4. Carbon and its Compounds

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A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used ?

Option A

Option B

Option C

Option D

Solution

$2HC \equiv CH + 5{O_2}\, \to \,4C{O_2} + 2{H_2}O$ $+$ Heat

When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen, it gives a clean flame with temperature $3000\,^oC$ because of complete combustion. This oxy-acetylene flame is used for welding. It is not possible to attain such a high temperature without mixing oxygen. This is the reason why a mixture of ethyne and air is not used.

Standard 10

Science

Ethane, with the molecular formula $C_2H_6$ has

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Draw the structures for the following compounds

$(i)$ Butanone $(ii)$ Hexanal

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Explain the formation of scum when hard water is treated with soap.

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Which of the following hydrocarbons undergo addition reactions :

$C _{2} H _{6}, \,C _{3} H _{8},\,C _{3} H _{6}, \,C _{2} H _{2}$ and $CH _{4}$

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A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used ?

Solution

Similar Questions

Ethane, with the molecular formula $C_2H_6$ has

Draw the structures for the following compounds $(i)$ Butanone $(ii)$ Hexanal

Explain the formation of scum when hard water is treated with soap.

Which of the following hydrocarbons undergo addition reactions : $C _{2} H _{6}, \,C _{3} H _{8},\,C _{3} H _{6}, \,C _{2} H _{2}$ and $CH _{4}$

What are the two properties of carbon which lead to the huge number of carbon compounds we see around us ?

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Draw the structures for the following compounds

$(i)$ Butanone $(ii)$ Hexanal

Which of the following hydrocarbons undergo addition reactions :

$C _{2} H _{6}, \,C _{3} H _{8},\,C _{3} H _{6}, \,C _{2} H _{2}$ and $CH _{4}$