Question

(a) Give the name and structural formula of one member each of the following
(i) alkane
(ii) alkene
(iii) alkyne
(iv) cycloalkane
(b) Give the common name of (i) ethyne, and (ii) ethene.
(c) Write the molecular formula and structure of benzene.

Answer 1

Explanation:

I don't know the 2 part of b

otherwise all I send u

Answer 2

(a) (i) alkane - ethane; (ii) alkene – ethene; (iii) alkyne – ethyne; (iv) cycloalkane – cyclobutene.

(b) (i) Common name for ethyne is acetylene; (ii) Common name for ethene is ethylene.

(c) Molecular formula of benzene is C6H6. Structure of benzene is below:

Explanation:

• (i) Alkane – has single covalent bond between the carbon atoms; (ii) Alkene – This has a carbon-carbon double bond; (iii) Alkyne – This has 180 degrees angle between the two C atoms.
• (i) Acetylene has the formula, $C_2 H_2$; (ii) Ethylene has the formula $C_2H_4$.  
• Benzene is made up of six carbon atoms joined together with hydrogen atom forming hydrocarbon.