Answer: Unsaturated hydrocarbons are more reactive due to the presence of C=C and C=C bonds which are weaker than the single bond in saturated hydrocarbons. These double and triple bonds are the reactive sites in the unsaturated hydrocarbons which easily give addition reactions.
Click to read further detail. Keeping this in view, why unsaturated hydrocarbons burn with sooty flame?
Unsaturated hydrocarbons like ethyne, also known as acetylene, burn to produce a yellow, sooty flame due to incomplete combustion in air. The flame is sooty because the percentage of carbon is comparatively higher than that of alkanes and so does not get completely oxidized in air.
One may also ask, which hydrocarbon is more reactive? alkynes
Similarly, it is asked, which hydrocarbons are more reactive and why?
Unsaturated hydrocarbons are more reactive when compared to saturated hydrocarbons as in the unsaturated compounds we have double bonds(pi bonds) which are weak and can be easily cleaved by incoming group therefore increasing the reactivity.
Why are alkenes not used as fuel?
Alkenes are not used as fuels because: They are scarce in nature. They are made from other hydrocarbons to make plastics, anti–freeze and many other useful compounds. They burn with a smoky flame due to less efficient, and more polluting incomplete combustion, so the heat energy release is lower than for alkanes.
Is camphor saturated or unsaturated?
Is pure camphor saturated or unsaturated? pure camphor is unsaturated hydrocarbon as its chemical formula is C10H16O. camphor is unsaturated. As when it is burned it results in sooty deposit in the spatula in which it is burnt.
Is cyclohexane saturated or unsaturated?
remember that aliphatic hydrocarbons are with the general formula of CnH2n+2, which is the basis for its saturation. If a compound does not satisfy this, then it is unsaturated. C = 6; H = 12 = 14 (x) not equal! – therefore cyclohexane is an unsaturated molecule.
Why alkene produce more soot?
1 Answer. The answer is because caron percentage in alkene is higher than alkane hence the combustion will produce more sooty flame.
Why do saturated hydrocarbons give a clean flame?
Saturated hydrocarbons give a clean flame due to their complete combustion whereas, unsaturated hydrocarbons give a yellow flame with lots of black smoke as they do not undergo complete combustion. The colour of the flame is yellow because of the presence of unburnt carbon particles.
Why do alkanes burn with blue flame?
Alkanes generally burn with blue flame or clean flame because the combustion is complete and no unburnt carbon particles are released.
Why saturated hydrocarbons are not good for health?
Since saturated hydrocarbons are fairly unreactive since they have long and complete valence bonds hence its hard bor the enzymes to act As a result they continue to be in their original form contributing to the adipose tissues increasing body weight ….
What is a clean flame?
The “dirty/sooty” flame, typically yellow, is called a luminous flame while the “clean” blue natural gas flame is called a non-luminous flame. The biggest factors to achieve clean combustion are a high air-fuel ratio, also known as the stoichiometric coefficient, and adequate pre-mixing.
Is alcohol a hydrocarbon?
Yes. Alcohols are hydrocarbon . (OH- ) functional group is substituted in hydrocarbon chain . First member of alcohol family is methanol ( CH4O ) .
Is benzene a hydrocarbon?
Benzene is an organic chemical compound with the molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a ring with one hydrogen atom attached to each. As it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon.
Which hydrocarbon group is the least reactive?
Is coal a hydrocarbon?
Hydrocarbon resource. Hydrocarbon resources are resources that contain hydrocarbon molecules which means it consists both hydrogen and carbon. Hydrocarbon resources are often known as fossil fuels (natural gas, oil, and coal) since hydrocarbons are the primary constituent in these.
Is co2 a hydrocarbon?
Common properties of hydrocarbons are the facts that they produce steam, carbon dioxide and heat during combustion and that oxygen is required for combustion to take place. The simplest hydrocarbon, methane, burns as follows: Burning of hydrocarbons is an example of an exothermic chemical reaction.