Complete the following table: Sr. No. Common Name Structural formula IUPAC Name 1 . Ethylene CH 2 = CH 2 _____ 2 . _____ CH 3 COOH Ethanoic acid 3 . Methyl alcohol _____ Methanol

Sr. No. Common Name Structural formula IUPAC Name 1 . Ethylene CH 2 = CH 2 Ethene 2 . Acetic acid CH 3 COOH Ethanoic acid 3 . Methyl alcohol CH 3 OH Methanol The IUPAC name of ethylene is ethene. It belongs to the alkene homologous series. It is the first member of the alkene homologous series. In the structure of ethene, there is a double bond present. The common name of ethanoic acid is acetic acid. An aqueous solution of ethanoic acid is called vinegar. It contains a carboxyl functional group – COOH . The structural formula of methanol is CH 3 OH . It contains a hydroxyl – OH functional group. The general formula of alcohol is R - OH , where R is an alkyl group.

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 .

Hydrocarbons are a class of organic compounds consisting entirely of hydrogen and carbon. Hydrocarbons are generally colourless and hydrophobic with only weak odours. Hydrocarbons are the principal constituents of petroleum and natural gas. They are used as fuels and lubricants as well as raw materials for the production of plastics, fibres, rubbers, solvents, explosives and industrial chemicals. Methane, ethane, propane, butane, etc., are examples of some common hydrocarbons.

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 .

Hydrocarbons are a class of organic compounds consisting entirely of hydrogen and carbon. Hydrocarbons are generally colourless and hydrophobic with only weak odours. Hydrocarbons are the principal constituents of petroleum and natural gas. They are used as fuels and lubricants as well as raw materials for the production of plastics, fibres, rubbers, solvents, explosives and industrial chemicals. Methane, ethane, propane, butane, etc., are examples of some common hydrocarbons.

Complete the following table: Sr. No. Common Name Structural formula IUPAC Name 1 . Ethylene CH 2 = CH 2 _____ 2 . _____ CH 3 COOH Ethanoic acid 3 . Methyl alcohol _____ Methanol

Sr. No. Common Name Structural formula IUPAC Name 1 . Ethylene CH 2 = CH 2 Ethene 2 . Acetic acid CH 3 COOH Ethanoic acid 3 . Methyl alcohol CH 3 OH Methanol The IUPAC name of ethylene is ethene. It belongs to the alkene homologous series. It is the first member of the alkene homologous series. In the structure of ethene, there is a double bond present. The common name of ethanoic acid is acetic acid. An aqueous solution of ethanoic acid is called vinegar. It contains a carboxyl functional group – COOH . The structural formula of methanol is CH 3 OH . It contains a hydroxyl – OH functional group. The general formula of alcohol is R - OH , where R is an alkyl group.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2018>Q 2

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Earn 100

Acetic acid _____

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Important Questions on Carbon Compounds

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2018>Q 1

_____ is a functional group of alcohol.(answer in words)

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2018>Q 2

Acetic acid _____

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2019>Q 3

The organic compound used in daily life is _____

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2019>Q 4

Write names of the first four homologous series of alcohols:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2019>Q 5

Complete the following table:

Sr. No.	Common Name	Structural formula	IUPAC Name
$1 .$	Ethylene	${CH}_{2} = {CH}_{2}$	_____
$2 .$	_____	${CH}_{3} COOH$	Ethanoic acid
$3 .$	Methyl alcohol	_____	Methanol

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Carbon Compounds>Maharashtra Board-2020>Q 7

Complete the following table:

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