You are given the following molecular formulae of some hydrocarbons : C5H8; C7H4; C6H6; C5H10; C7 H12; C6H12 (a) Which formula represents cyclohexane as well as hexene ? (b) Which formula represents benzene ? (c) Which three formulae represent open chain unsaturated hydrocarbons having double bonds ? (e) Which two formulae represent unsaturated hydrocarbons having triple bonds ? (f) Which three formulae can represent cyclic hydrocarbons ? Lakhmir Singh Chemistry Class 10

You are given the following molecular formulae of some hydrocarbons :

1.	You are given the following molecular formulae of some hydrocarbons : C5H8; C7H4; C6H6; C5H10; C7 H12; C6H12 (a) Which formula represents cyclohexane as well as hexene ? (b) Which formula represents benzene ? (c) Which three formulae represent open chain unsaturated hydrocarbons having double bonds ? (e) Which two formulae represent unsaturated hydrocarbons having triple bonds ? (f) Which three formulae can represent cyclic hydrocarbons ? Lakhmir Singh Chemistry Class 10
Answer» a)C6H12 b)C6H6 C)C7H4 , C5H10 , C6H12 E) C5H8 , C7H12 f)C5H8 , C6H6 , C5H10 , C7H12 , C6H12Explanation:There are 7 general formulas out of which 3 are only APPLICABLE in this case CnH2n+2 , CnH2n , CnH2n-2CnH2n+2 = AlkanesCnH2n =Alkenes , CycloaklanesCnH2n-2 = ALKYNES , Cycloalkenes , alkadiene , Spiroalkane, Bicycloalkanes