Write structures of different chain isomers of alkanes corresponding to the molecular formula C₆H₁₄. Also, write their IUPAC names.

Write structures of different isomeric alkyl groups corresponding to the molecular formula C₅H₁₁. Write IUPAC names of alcohols obtained by attachment of -OH groups at different carbons of the chain.

Write IUPAC names of the following compounds:
(i) (CH₃)₃ C CH₂C(CH₃)₃
(ii) (CH₃)₂ C(C₂H₅)₂
(iii) tetra-tert-butyl methane 

Write structural formulas of the following compounds:

(i) 3, 4, 4, 5-Tetramethylheptane.

(ii) 2, 5-Dimethylhexane.

95.

Write structures for each of the following compounds. Why are the given names incorrect? Write correct IUPAC names:
(i) 2-Ethylpentane
(ii) 5-Ethyl-3-methylheptane

How are alkanes formed from:
(i) unsaturated hydrocarbons
(ii) sodium salt of fatty acids?

Why is Wurtz reaction not preferred for the preparation of alkanes containing odd number of carbon atoms? Illustrate your answer bytaking one example.

Give a brief account of Kolbe's electrolysis.