Homologous series | Carbon and its compounds | Chemistry Class 10 | Khan Academy

Let's explore what homologous series are. Let's also write down the general formula for the alkanes, alkenes, and alkynes homologous series.
We will then solve some simple examples around those for practice
Timestamps
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Created by Mahesh Shenoy

[@samanvithas1766]

Due to medical issues I couldn't attend my school for a week and no videos helped me out in this topic... All I could do is listen and get sad for not understanding
This video helped me out a lot!! Thank you so much 💖

[@khasimali8679]

Hi sir nice explanation

[@Kirannya2008]

Tamil pls

[@abdulaleem4223]

then the formula for alkene should C(n+1)H2(n+1) and for alkynes it should be C(n+1)H2(n+1)-2

[@sado_odles]

boom 😂

[@psyxh_27]

Life saver bruhh😊❤

[@RavindranathanAshok]

Alchohol general formula =CnH2n+1

[@user-melody5]

Thank you this is nice

[@siphomamba-dv2ri]

Why isnt it C8?

[@avleensandhu8816]

c8 is a toxic mf

[@for_tannies]

I'll try to break it down to explain the concept step by step:
so look,
we know that the alkane series starts from 1 carbon atom, right?
so the molecular formula for 8th member of ALKANE would be C8H18, right?
now, if that's clear to you..we move ahead towards alkene.
we know that, the Alkene series starts from 2 Carbon instead of 1..the reason behind that is ALKENE has a general formula CnH2n...if it would to be start from 1 carbon then the first compound would be CH2 and in this case the 4 valency of Carbon would not be satisfied..so alkene series are started ftom 2 instead of 1.
so, if the Alkene series starts from 2 Carbon..that means the 1st MEMBER itself would have 2 carbons..so if we need to find the molecular formula for the 8th member of Alkene series..that means that the 8th MEMBER would itself have 9 carbons..
so the formula would be
C9H18
the same goes in the case of alkyne! :)
if you have any doubts regarding this, feel free to ask me!

[@Cocxy69]

Alkene , Alkynes :- Always have 2 carbons attached, only then they're qualified as alkene Alkynes.
So one more C was added
Alkanes is the only one that can work with one Carbon to be eligible to be an alkane

[@siyona6569]

3:22

[@ambikasubramani1836]

💗💗

[@dr-tg7kd]

Amazing but please uplod in urdu