Question

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$\huge \blue{question}$
Write Atleast 5 Physical Property of Alkane's, Alkene's and Alkyne's!

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Answer 1

$\sf{\huge {\underline {PHYSICAL\:PROPERTIES}}}$ :

$\sf {\Large {\underline {ALKANES}}}$ :

1 ). $\tt{\underline {Solubility}}$ : Alkanes are non - polar, therefore, they are insoluble on water ( polar ). ( Like dissolves in Like theory ).

2. $\tt{\underline {Boiling\:Point}}$ : As the number of C-atoms increased molecular mass increases by which Van - der - Waal's force increases, which increases boiling point.

In isomeric Alkanes, as the number of branches increases, surface area of the molecule decreases which decreases the boiling point.

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$\sf {\Large {\underline {ALKENES}}}$ :

1 ).$\tt{\underline {Boiling\:Point}}$ : The branched chain Alkenes, have lower boiling points than the corresponding straight chain Alkenes.

2 ). $\tt{\underline {Melting\:Point}}$ : The melting point of Alkenes have higher than the corresponding Alkanes.

3 ). $\tt{\underline {Solubility}}$ : Alkenes are lighter than water. These are insoluble in water because they are non - polar.

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$\sf {\Large {\underline {ALKYNES}}}$ :

1 ). $\tt{\underline {Solubility}}$ : Alkynes are weakly polar in nature. They are lighter than water and immiscible with water but are soluble in organic solvents.

2 ). $\tt{\underline {Melting \:And\:Boiling \:Point}}$ : The melting and boiling points of the members of the family are slightly higher as compared to those of the corresponding members of the Alkane and Alkene families.

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Answer 2

$\huge\mathfrak\red{Answer}$

$\bold{Physical Properties of Alkanes :}$

⭐PHYSICAL STATE :

Alkanes contain only C-C and C-H sigma bonds which are almost non-polar due to very small difference of electronegativity between carbon and hydrogen atoms.

⭐BOILING POINTS :

Alkanes generally have low boiling points.

⭐VOLATILITY.

⭐MELTING POINTS.

⭐SOLUBILITY.

⭐DENSITY.

$\bold{Physical properties of Alkenes}$

⭐This carbon-carbon double bond changes the physicals properties of alkenes.

⭐At room temperatue, alkenes exist in all three phases, solid, liquids, and gases.

⭐Melting and boiling points of alkenes are similar to that of alkanes, however, isomers of cis alkenes have lower melting points than that of trans isomers.

$\bold{Physical properties of Alkynes}$

⭐Physical State

The first three alkynes are gases while those containing five to thirteen carbon atoms are liquids and higher alkynes are solids.Melting and Boiling Points.

⭐The melting and boiling points of alkynes are quite low and increase regularly with increase in molecular mass.

⭐Solubility.

⭐Density.

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