Heating an alcohol with concentrated sulphuric acid results in the dehydration of the alcohol to give the alkene as shown by the reaction of ethanol to give ethene. CH 3 CH 2 OH → Hot conc . sulphuric acid CH 2 = CH 2 Pramila heated 2 -butanol (shown below) with concentrated sulphuric acid. Write the structural formulae of all the possible products of the reaction.

The reaction of 2 - butanol with concentrated sulfuric acid can lead to the formation of two possible products: 2 - butene and 1 - butene. The structural formulas of these products are as follows: 2 - butene: CH 3 CH = CHCH 3 1 - butene: CH 3 CH 2 CH = CH 2 In both cases, the sulfuric acid acts as a dehydrating agent, removing a water molecule from the alcohol to form the corresponding alkene.

An alkane has 11 carbon atoms arranged within ring structures as shown below: What is the molecular formula of alkane?

The molecular formula of the given alkane is C 11 H 20 . The molecular formula C 11 H 20 suggests that the compound contains 11 carbon atoms and 20 hydrogen atoms. Each carbon atom is tetravalent and forms single covalent bonds with two neighboring carbon atoms and two hydrogen atoms. The hydrogen atoms are bonded to the carbon atoms in a tetrahedral geometry, which is the most stable arrangement for carbon's tetravalency.

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 16

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A carbon compound of molecular formula $C_{5} H_{10} O$ contains a ketone functional group. Draw the structures of three isomers of this compound having a ketone group.

Important Questions on Carbon and its Compounds

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 21

Heating an alcohol with concentrated sulphuric acid results in the dehydration of the alcohol to give the alkene as shown by the reaction of ethanol to give ethene.

${CH}_{3} {CH}_{2} OH \overset{Hot conc . sulphuric acid}{\to} {CH}_{2} = {CH}_{2}$

Pramila heated $2$ -butanol (shown below) with concentrated sulphuric acid.

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Write the structural formulae of all the possible products of the reaction.

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 23

An alkane has $11$ carbon atoms arranged within ring structures as shown below:

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What is the molecular formula of alkane?

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 25

Organic compounds belonging to different homologous series can be isomers. For example, propanal and
propanone are isomers.
Can an alkane and an alchohol be isomers? Why or Why not?

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 27

Polythene is a plastic made from ethene(

{CH}_{2} = {CH}_{2}

). When ethene is subjected to high pressure and moderately high temperatures, ethene molecules react with each other to form large molecules hundreds of times bigger, forming the plastic.
Which property of carbon atoms is instrumental in the formation of polythene?

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Science Textbook of Competency Based Questions for Class X>Chapter 4 - Carbon and its Compounds>Exercise>Q 29

In the reaction sequence

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