[{"id":1066559,"question":"What is the IUPAC name of CH3CH2CH3?","choices":[{"text":"Methane","value":"A"},{"text":"Propane","value":"B"},{"text":"Butane","value":"C"},{"text":"Ethane","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066558,"question":"Ethene belongs to which class of hydrocarbons.","choices":[{"text":"Alkane","value":"A"},{"text":"Alkene","value":"B"},{"text":"Alkyne","value":"C"},{"text":"Aromatic","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066557,"question":"The general formula for alkanes is.","choices":[{"text":"CnH2n+2","value":"A"},{"text":"CnH2n-2","value":"B"},{"text":"CnH2n","value":"C"},{"text":"CnH2n-1","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066556,"question":"Cycloalkanes differ from alkanes ny ","choices":[{"text":"Being cyclic","value":"A"},{"text":"Having hygher rectivity","value":"B"},{"text":"Having sigma bonds","value":"C"},{"text":"Having delocalized electrons","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066555,"question":"Aromatic hydrocarbons must contain.","choices":[{"text":"Straight chains","value":"A"},{"text":"Double bonds only","value":"B"},{"text":"A benzene ring","value":"C"},{"text":"A riple bond","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066554,"question":"Which class of hydrocarbons contains one or more double bonds.","choices":[{"text":"Alkanes","value":"A"},{"text":"Aromatics","value":"B"},{"text":"Cycloalkanes","value":"C"},{"text":"Alkenes","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":1066553,"question":"Which  of these hydroarbons is saturated","choices":[{"text":"Propane","value":"A"},{"text":"Ethyne","value":"B"},{"text":"Butane","value":"C"},{"text":"Cyclopentene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066552,"question":"Which hydrocarbon has only single bonds.","choices":[{"text":"Ethene","value":"A"},{"text":"Ethyne","value":"B"},{"text":"Propane","value":"C"},{"text":"Benzene","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066551,"question":"Which  of the followg is an aromatic hydrocarbon ","choices":[{"text":"Benzene","value":"A"},{"text":"Ethene","value":"B"},{"text":"Methane","value":"C"},{"text":"Cyclohexane","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066550,"question":"Which of the following is an aromatic hydrocarbon","choices":[{"text":"Ethene","value":"A"},{"text":"Benzene","value":"B"},{"text":"Methane","value":"C"},{"text":"Cyclohexane","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066549,"question":"Alkanes are also called.","choices":[{"text":"paraffins","value":"A"},{"text":"Olefins","value":"B"},{"text":"Aromatics","value":"C"},{"text":"Alkynes","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066548,"question":"Hydrocarbon are compounds made of.","choices":[{"text":"Hydrogen and oxygen","value":"A"},{"text":"Carbon and hydrogen","value":"B"},{"text":"Carbon , hydrogen, and oxygen.","value":"C"},{"text":"Carbon and oxygen","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066547,"question":"The enhanced stability of conjugated diens compared to isolated dienes is primarily attributed to","choices":[{"text":"Inductive effects the double bonds ","value":"A"},{"text":"Increases s -character of the hybridized orbitals","value":"B"},{"text":"Delocatisation of electrons acros the conjugated system","value":"C"},{"text":"Steric hindrance between the double bonds","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066546,"question":"What intermediate is formed duirng the electrophilic additionof HBr TO AN ALKENE.","choices":[{"text":"Carbonation ","value":"A"},{"text":"Carbanion","value":"B"},{"text":"Radical","value":"C"},{"text":"Epoxide","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066545,"question":"The addition of unsymmetircal regent to an unsymmetrical alkene is in accordance with.","choices":[{"text":"markovnikov's rule","value":"A"},{"text":"Hund'srule","value":"B"},{"text":"Le Chatelier's principle","value":"C"},{"text":"Aufbau principle","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066544,"question":"What is the firt step in the electrophilic addition reaction of alkenes.","choices":[{"text":"Formation of acarbocation ","value":"A"},{"text":"Attack by nucleophile","value":"B"},{"text":"Attack by an electrophile on the double bond","value":"C"},{"text":"Formation of a free radical","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066543,"question":"Which of the followng reactions can an alkane undergo.","choices":[{"text":"Addition ","value":"A"},{"text":"Substiutution ","value":"B"},{"text":"Polymerization ","value":"C"},{"text":"Nitration ","value":"D"},{"value":"E"}],"correctAnswer":2}]