Question

Write down (i) structural formula, and (ii) electron-dot formula, of any one isomer of hexane (C6H14), other than n-hexane.

Lakhmir Singh Chemistry Class 10

Answer 1

Answer:

i) One isomer of hexane is 2 methyl pentane. Hexane is an alkane with six carbon atoms. Isomers of an element are those having same molecular formula but different shapes or configuration.

In case of 2 methyl pentane, the number of linear carbon atom is five and a methyl group( CH3) is attached to the carbon atom in second position.

Structural formula of 2 methyl pentane is CH3-CH(CH3)-CH2-CH2-CH3.

ii) The electron dot configuration shows the electron pair shared in each of the bonds between carbon and hydrogen atom.

H H H H H

•• •• •• •• ••

H••C ••C••C••C••C••H

•• : •• •• ••

H H H

H••C••H

••

H

Answer 2

Explanation:

WRITE MOLECULAR FORMULA FOR THE FOLLOWING:

1.3-METHY HEXANE