[{"id":124584,"question":"Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is","choices":[{"text":"1, 1-Dimethyl-3-butene","value":"A"},{"text":"1,1,1-Trimethyl-3-propene","value":"B"},{"text":"3,3,-Dimenthyl-1-butene","value":"C"},{"text":"3,3,3,-Trimethyl-1-propene","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":124582,"question":"Which of the following substances is used as an antiknock compound?","choices":[{"text":"Tetraethyl lead","value":"A"},{"text":"Lead tetrachloride","value":"B"},{"text":"Lead acetate","value":"C"},{"text":"Ethyle acetate","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":124581,"question":"The order of reactivity of halogens in aliphatic substitution reactions is","choices":[{"text":"Br2 &gt; C12 &gt; F2","value":"A"},{"text":"C12 &gt; Br2 &gt; F2","value":"B"},{"text":"C12 C12 &gt; Br2","value":"C"},{"text":"F2 &gt; Br2 &gt; C12","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":124579,"question":"Acetylene gives","choices":[{"text":"White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu(NO3)2","value":"A"},{"text":"White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu2C12","value":"B"},{"text":"White ppt. with both","value":"C"},{"text":"Red ppt. with both","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119982,"question":"During nitration of benzene, the active nitrating agent is","choices":[{"text":"NO3","value":"A"},{"text":"NO2+","value":"B"},{"text":"NO2-","value":"C"},{"text":"HNO3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119981,"question":"Amongst the following the compound that can be most readily sulphonated is","choices":[{"text":"Toluene","value":"A"},{"text":"Benzene","value":"B"},{"text":"Nitrobenzene","value":"C"},{"text":"Chlorobenzene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119980,"question":"Benzene does not undergo","choices":[{"text":"Substitution reaction","value":"A"},{"text":"Addition reaction","value":"B"},{"text":"Oxidation reaction","value":"C"},{"text":"Elimination reaction","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119978,"question":"Aromatic hydrocarbons are the derivatives of","choices":[{"text":"Normal series of paraffins","value":"A"},{"text":"Alkene","value":"B"},{"text":"Benzene","value":"C"},{"text":"Cyclohexane","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119975,"question":"The benzene molecule contains","choices":[{"text":"Three double bonds","value":"A"},{"text":"Two double bonds","value":"B"},{"text":"One double bonds","value":"C"},{"text":"Delocalizedπ-electron charge","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119971,"question":"A single benzene ring can have ______ ortho position maximally","choices":[{"text":"One","value":"A"},{"text":"Two","value":"B"},{"text":"Three","value":"C"},{"text":"Four","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119969,"question":"Which of the following is not an ortho-para directing group","choices":[{"text":"","img":"119969_636337464244655628-RA1.jpg","value":"A"},{"text":"","img":"119969_636337464244655628-RA2.jpg","value":"B"},{"text":"","img":"119969_636337464244655628-RA3.jpg","value":"C"},{"text":"","img":"119969_636337464244655628-RA4.jpg","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119967,"question":"Which of the following is an ortho-para directing group","choices":[{"text":"","img":"119967_636337463127832234-RA1.jpg","value":"A"},{"text":"","img":"119967_636337463127832234-RA2.jpg","value":"B"},{"text":"","img":"119967_636337463127832234-RA3.jpg","value":"C"},{"text":"","img":"119967_636337463127832234-RA4.jpg","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119963,"question":"Which of the following is not an electrophitic substitution reaction of benzene","choices":[{"text":"Nitration","value":"A"},{"text":"Sulphonation","value":"B"},{"text":"Fridel-Craft alkylation","value":"C"},{"text":"Free radical chlorination of benzene","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119961,"question":"Which of the following reaction is characteristic of benzene","choices":[{"text":"Electrophilic substitution reaction","value":"A"},{"text":"Reduction","value":"B"},{"text":"Oxidation","value":"C"},{"text":"Ozonolysis","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119959,"question":"Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called","choices":[{"text":"Wurtz reaction","value":"A"},{"text":"Fitting reaction","value":"B"},{"text":"Wurtz fitting reaction","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119957,"question":"When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product","choices":[{"text":"Na<sub>2</sub>CO<sub>3</sub>","value":"A"},{"text":"NaHCO<sub>3</sub>","value":"B"},{"text":"Ca(OH)<sub>2</sub>","value":"C"},{"text":"CaCO<sub>3</sub>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119955,"question":"The carbon, carbon bond length in benzene is","choices":[{"text":"1.54A°","value":"A"},{"text":"1.34A°","value":"B"},{"text":"1.20A°","value":"C"},{"text":"1.39A°","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119953,"question":"Cyclohexane can be converted not benzene in the presence of","choices":[{"text":"Pt at 100°C","value":"A"},{"text":"Pt at 250°C","value":"B"},{"text":"Pd at room temperature","value":"C"},{"text":"Pt at room temperature","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119951,"question":"","questionImage":"119951_636337457780795656-RQ.jpg","choices":[{"text":"2-bromonitrobenzene","value":"A"},{"text":"2-nitrobromobenzene","value":"B"},{"text":"1-bromonitrobenzene","value":"C"},{"text":"1-nitrobromobenzene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119949,"question":"Introduction of a second methyl group in methylbenzene will give how many isomeric dimethyllenzenes","choices":[{"text":"2","value":"A"},{"text":"1","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119944,"question":"Which of the following is not aromatic hydrogencarbon","choices":[{"text":"Benzene","value":"A"},{"text":"Naphthalene","value":"B"},{"text":"Toluene","value":"C"},{"text":"Cyclohexene","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119943,"question":"The simplest and the parent members of aromatic hydrocarbon is","choices":[{"text":"Benzene","value":"A"},{"text":"Toluene","value":"B"},{"text":"Biphenyis","value":"C"},{"text":"Naphthalene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119941,"question":"The order of dehydration of alcohol","choices":[{"text":"10&gt; 20&gt; 30","value":"A"},{"text":"10&gt; 30&gt; 20","value":"B"},{"text":"20&gt; 30&gt; 10","value":"C"},{"text":"30&gt; 20&gt; 10","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112107,"question":"","questionImage":"112107_636320178879014125-RQ.jpg","choices":[{"text":"4-methyl pentene","value":"A"},{"text":"2-methyle-1-butene","value":"B"},{"text":"2-methyl propane","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112104,"question":"De halogenatiion of tetrahalides happens in the presence of active metal like","choices":[{"text":"Zn","value":"A"},{"text":"Mg","value":"B"},{"text":"Both a and b","value":"C"},{"text":"None of them","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112103,"question":"The four bonds of carbon in methane are directed towards the corners of","choices":[{"text":"Cube","value":"A"},{"text":"Pentagon","value":"B"},{"text":"Hexagon","value":"C"},{"text":"Tetrahedron","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112102,"question":"The next homologue of C<sub>10</sub>H<sub>22</sub>will be","choices":[{"text":"C<sub>9</sub>H<sub>20</sub>","value":"A"},{"text":"C<sub>12</sub>H<sub>26</sub>","value":"B"},{"text":"C<sub>11</sub>H<sub>24</sub>","value":"C"},{"text":"C<sub>13</sub>H<sub>28</sub>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112101,"question":"Which one of the following gases is used for artificial ripening of fruits","choices":[{"text":"Ethene","value":"A"},{"text":"Ethane","value":"B"},{"text":"Methane","value":"C"},{"text":"Propane","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112100,"question":"Synthesis of rubber is made by polymerization of","choices":[{"text":"Chloroform","value":"A"},{"text":"Acetylene","value":"B"},{"text":"Divinylacetylene","value":"C"},{"text":"Butene","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112099,"question":"The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule","choices":[{"text":"Hund's rule","value":"A"},{"text":"Markowvikov's rule","value":"B"},{"text":"Pauli's exclusion principle","value":"C"},{"text":"Auf ban principle","value":"D"},{"value":"E"}],"correctAnswer":2}]