Give reasons for the following :

Isomers belonging to the same homologous series may differ in physical properties but not in chemical properties.

Give balanced equations for the following conversions.

1. An alkyne to an alkene.
2. An alkene to an alkane.
3. An alkane to an alcohol.
4. An alcohol to an alkene.
5. A carboxylic acid to an ammonium salt

Select from the letters A to G the correct answer corresponding to the statements from 1 to 5 :

   A : Ammoniacal CuCl₂
   B : Trichloromethane
   C : Trichloroethane
   D : Bromine soln.
   E : Aqueous KOH
   F : Ethene
   G : Sodalime
   H : Ethanol
   I : Ethyne

1. The organic compound which forms carbon tetrachloride on reaction with chlorine.
2. The reagent which can distinguish between ethene and ethyne.
3. The substance which reacts with bromoethane to give ethanol.
4. The substance which gives bromoethane on reaction with hydrogen bromide.
5. The substance which reacts with acetic acid to give CH₃COOC₂H₅

Give reasons for the following :

A given organic compound can be assigned only one name on the basis of the IUPAC system.