0.369g of a bromo derivative of a hydrocarbon (A) when vaporised occupied 67.2mL at NTP. (A), on reaction with aqueous NaOH, gives (B). (B), when passed over alumina at 250^(@)C, gives a neutral compound (C ) while at 300^(@)C, it gives a hydrocarbon (D). (D), when heated with HBr gives an isomer of (A). When (D ) is treated with concentrated H_(2)SO_(4) and the product is diluted with water and distilled, (E ) is obtained Identify (A) to (E ).

0.369g of a bromo derivative of a hydrocarbon (A) when vaporised occup

1.	0.369g of a bromo derivative of a hydrocarbon (A) when vaporised occupied 67.2mL at NTP. (A), on reaction with aqueous NaOH, gives (B). (B), when passed over alumina at 250^(@)C, gives a neutral compound (C ) while at 300^(@)C, it gives a hydrocarbon (D). (D), when heated with HBr gives an isomer of (A). When (D ) is treated with concentrated H_(2)SO_(4) and the product is diluted with water and distilled, (E ) is obtained Identify (A) to (E ).
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