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When a hydrocarbon is burnt it gives yellow flames with black smoke. Which of the following is true regarding hydrocarbon:
- a)Hydrocarbon is saturated
- b)Hydrocarbon is unsaturated
- c)Hydrocarbon is an alcohol
- d)Hydrocarbon is an aldehyde
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
When a hydrocarbon is burnt it gives yellow flames with black smoke. ...
Concept:
Saturated Hydrocarbon:
Compounds of carbon, which are linked by only single bonds between the carbon atoms, are called saturated compounds.
Unsaturated Hydrocarbon:
Compounds of carbon having double or triple bonds between their carbon atoms are called unsaturated compounds.
Application:
Saturated hydrocarbons give a clean flame while unsaturated carbon compounds will give a yellow flame with lots of black smoke.
Most Upvoted Answer
When a hydrocarbon is burnt it gives yellow flames with black smoke. ...
Hydrocarbon is unsaturated
Explanation:
When a hydrocarbon is burnt, it gives yellow flames with black smoke. This observation provides clues about the nature of the hydrocarbon. Let's break down the options given and determine the correct answer.
a) Hydrocarbon is saturated:
A saturated hydrocarbon contains only single bonds between carbon atoms. These hydrocarbons are typically found in fossil fuels like methane (CH4) and propane (C3H8). When these saturated hydrocarbons burn, they produce a clean blue flame with no smoke. Therefore, option 'a' is not correct.
b) Hydrocarbon is unsaturated:
An unsaturated hydrocarbon contains at least one double or triple bond between carbon atoms. Examples of unsaturated hydrocarbons are alkenes and alkynes. When these hydrocarbons burn, they produce a yellow flame with black smoke. This is because the incomplete combustion of unsaturated hydrocarbons results in the formation of soot particles, which give rise to the black smoke. The yellow flame is a result of the presence of carbon atoms in the hydrocarbon. Therefore, option 'b' is correct.
c) Hydrocarbon is an alcohol:
Alcohols are organic compounds that contain a hydroxyl (OH) group attached to a carbon atom. They have the general formula R-OH, where R represents an alkyl group. When alcohols burn, they produce a clean blue flame with no smoke. Therefore, option 'c' is not correct.
d) Hydrocarbon is an aldehyde:
Aldehydes are organic compounds that contain a carbonyl group (-CHO) attached to a carbon atom. They have the general formula R-CHO, where R represents an alkyl group. When aldehydes burn, they produce a clean blue flame with no smoke. Therefore, option 'd' is not correct.
In conclusion, the correct answer is option 'b' - Hydrocarbon is unsaturated.
Explanation:
When a hydrocarbon is burnt, it gives yellow flames with black smoke. This observation provides clues about the nature of the hydrocarbon. Let's break down the options given and determine the correct answer.
a) Hydrocarbon is saturated:
A saturated hydrocarbon contains only single bonds between carbon atoms. These hydrocarbons are typically found in fossil fuels like methane (CH4) and propane (C3H8). When these saturated hydrocarbons burn, they produce a clean blue flame with no smoke. Therefore, option 'a' is not correct.
b) Hydrocarbon is unsaturated:
An unsaturated hydrocarbon contains at least one double or triple bond between carbon atoms. Examples of unsaturated hydrocarbons are alkenes and alkynes. When these hydrocarbons burn, they produce a yellow flame with black smoke. This is because the incomplete combustion of unsaturated hydrocarbons results in the formation of soot particles, which give rise to the black smoke. The yellow flame is a result of the presence of carbon atoms in the hydrocarbon. Therefore, option 'b' is correct.
c) Hydrocarbon is an alcohol:
Alcohols are organic compounds that contain a hydroxyl (OH) group attached to a carbon atom. They have the general formula R-OH, where R represents an alkyl group. When alcohols burn, they produce a clean blue flame with no smoke. Therefore, option 'c' is not correct.
d) Hydrocarbon is an aldehyde:
Aldehydes are organic compounds that contain a carbonyl group (-CHO) attached to a carbon atom. They have the general formula R-CHO, where R represents an alkyl group. When aldehydes burn, they produce a clean blue flame with no smoke. Therefore, option 'd' is not correct.
In conclusion, the correct answer is option 'b' - Hydrocarbon is unsaturated.
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When a hydrocarbon is burnt it gives yellow flames with black smoke. Which of the following is true regarding hydrocarbon:a)Hydrocarbon is saturatedb)Hydrocarbon is unsaturatedc)Hydrocarbon is an alcohold)Hydrocarbon is an aldehydeCorrect answer is option 'B'. Can you explain this answer?
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