(a) Give the name and structural formula of one member each of the following :
(i) alkane (ii) alkene (iii) alkyne (iv) cycloalkane

(b) What are the common names of (i) Ethyne (ii) Ethene

(c) What is the chemical and structural formula of benzene?

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Solution

(a) (i) Methane is an alkane with the molecular formula $C H_{4}$ .
The structural formula is:

(ii) Ethene is an alkene with the molecular formula $C_{2} H_{4}$ .
The structural formula is :

(iii) Ethyne is an alkyne with the molecular formula $C_{2} H_{2}$ .
The structural formula is :

(iv) Cyclohexane is a cycloalkane with the molecular formula $C_{6} H_{12}$ .
The structural formula is:

(b) Common name of
(i) Ethyne is acetylene
(ii) Ethene is ethylene

(c) The molecular formula of benzene is $C_{6} H_{6}$ .
Its structural formula is :

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Similar questions

(a) Give the general formula of (i) Alkene (ii) Alkane (iii) Alkynes

(b) Write the structural formula of propyne & 2,3 dimethylpentane.

Write the molecular formula of (i) an alkane (ii) an alkene, and (iii) an alkyne, each having 20 carbon atoms.

C_{2} H_{6}

C_{3} H_{4}

C_{3} H_{6}

C_{3} H_{8}

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