(D) The given hybridisation sequence is $sp^3, sp^2, sp^2, sp^3, sp^2, sp^2, sp, sp$. Counting the carbons: $1(sp^3): CH_3-$ $2(sp^2): -CH=$ $3(sp^2):

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$CH_3-CH=CH-CH_2-CH=CH-C\equiv CH$

(D) The given hybridisation sequence is $sp^3, sp^2, sp^2, sp^3, sp^2, sp^2, sp, sp$. Counting the carbons: $1(sp^3): CH_3-$ $2(sp^2): -CH=$ $3(sp^2): =CH-$ $4(sp^3): -CH_2-$ $5(sp^2): -CH=$ $6(sp^2): =CH-$ $7(sp): -C\equiv$ $8(sp): \equiv CH$ Combining these,we get $CH_3-CH=CH-CH_2-CH=CH-C\equiv CH$. This matches option $D$.

Class 11 Chemistry Hydrocarbons Mix Examples-Hydrocarbon

Medium

$A$ straight chain hydrocarbon has the molecular formula $C_8H_{10}$. The hybridisation for the carbon atoms from one end of the chain to the other are respectively $sp^3$,$sp^2$,$sp^2$,$sp^3$,$sp^2$,$sp^2$,$sp$ and $sp$. The structural formula of the hydrocarbon would be

AIPMT 1992 All AIPMT

A
$CH_3-C\equiv C-CH_2-CH=CH-CH=CH_2$
B
$CH_3-CH_2-CH=CH-CH_2-C\equiv C-CH=CH_2$
C
$CH_3-CH=CH-CH_2-C\equiv C-CH=CH_2$
D
$CH_3-CH=CH-CH_2-CH=CH-C\equiv CH$

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AIPMT 1992 Paper All AIPMT years →

The major product$(s)$ obtained in the following reaction is/are:

DifficultJEE MAIN 2019

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What is the stereochemistry of the product formed in the following reaction?

Medium

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Match the following reactions in List-$I$ with their products in List-$II$:
List-$I$ List-$II$
$A$. The reaction of $1,6$-dibromohexane with $Zn$. $i$. $H_3C-C \equiv CH$
$B$. Reaction of ethanol with concentrated $H_2SO_4$ at $443 \ K$. $ii$. $H_2C=CH_2$
$C$. Major product in the reaction of propene with $HBr$ in the presence of benzoyl peroxide. $iii$. $CH_3-CH_2-CH_2-Br$
$D$. The reaction of $1,1$-dibromopropane with $NaNH_2$ at $433 \ K$. $iv$. Cyclohexane

List-$I$	List-$II$
$A$. The reaction of $1,6$-dibromohexane with $Zn$.	$i$. $H_3C-C \equiv CH$
$B$. Reaction of ethanol with concentrated $H_2SO_4$ at $443 \ K$.	$ii$. $H_2C=CH_2$
$C$. Major product in the reaction of propene with $HBr$ in the presence of benzoyl peroxide.	$iii$. $CH_3-CH_2-CH_2-Br$
$D$. The reaction of $1,1$-dibromopropane with $NaNH_2$ at $433 \ K$.	$iv$. Cyclohexane

DifficultTS EAMCET 2019

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