Isomers are the organic compounds having same molecular formula, but different arrangements of carbon atoms or simply different structures. For example, butane can exist in two isomeric forms such as n-butane and iso-butane.

Complete the following table: Straight chain of Carbon compounds Structural formula Molecular formula Name C CH 4 Methane C - C _____ _____ Ethane C - C - C _____ C 3 H 8 _____ C - C - C - C _____ _____

Straight chain of Carbon compounds Structural formula Molecular formula Name C CH 4 Methane C - C C 2 H 6 Ethane C - C - C C 3 H 8 Propane C - C - C - C C 4 H 10 Butane Methane, ethane, propane and butane are saturated hydrocarbons containing 1 , 2 , 3 and 4 carbon atoms respectively. Saturated hydrocarbons are the simplest of the hydrocarbon species and are composed entirely of single bonds. All these hydrocarbons belong to the alkane homologous series. The general formula for alkanes is C n H 2 n + 2 . So, the chemical formula for ethane is C 2 H 6 , for propane it is C 3 H 8 and the formula for butane is C 4 H 10 .

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The structure of cyclohexene is:

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Important Questions on Organic Chemistry

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Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

What are isomers?

HARD

Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Complete the following table:

Straight chain of Carbon compounds	Structural formula	Molecular formula	Name
$C$		${CH}_{4}$	Methane
$C - C$	_____	_____	Ethane
$C - C - C$	_____	$C_{3} H_{8}$	_____
$C - C - C - C$		_____	_____

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Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Write the names, molecular formula and structural formula of first four hydrocarbons.

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Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Draw the structure of the compound of carbon given below.

Benzene.

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Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

What is the value of

H - C - H

bond angle in methane?

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Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Write the name and structure of a saturated compound in which the carbon atoms are arranged in a ring. Give the number of single bonds present in this compound.

MEDIUM

Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Giving the structure, state the number of single bonds, double bonds and triple bonds (if any) in benzene.

MEDIUM

Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

Structural formula of benzene is

HARD

Science>Chemistry>Organic Chemistry>Structure of Hydrocarbon

How many single and double bonds are present in the molecule of benzene