[{"id":112197,"question":"","questionImage":"112197_636320804927499119-RQ.jpg","choices":[{"text":"Electronphilic substitution","value":"A"},{"text":"Electrophilic addition","value":"B"},{"text":"Free radical substitution","value":"C"},{"text":"Nuclephilic substitution","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112194,"question":"Which of the following chlorocompounds is heat easily hydrolysed by hydorxide ion to give the product indicated","choices":[{"text":"","img":"112194_636320804010765659-RA1.jpg","value":"A"},{"text":"","img":"112194_636320804010765659-RA2.jpg","value":"B"},{"text":"","img":"112194_636320804010765659-RA3.jpg","value":"C"},{"text":"","img":"112194_636320804010765659-RA4.jpg","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112187,"question":"Dehydrohalogenation of alkyl halides produces","choices":[{"text":"Alcohol","value":"A"},{"text":"Alkane","value":"B"},{"text":"Alkene","value":"C"},{"text":"Alkyne","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112186,"question":"When metallic sodium in ether is heated with ethyl chloride, which alkane is formed","choices":[{"text":"Propane","value":"A"},{"text":"Ethane","value":"B"},{"text":"Iso-butane","value":"C"},{"text":"N-butane","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112185,"question":"Grignard's reagent on treatment with carbonyl compounds yield","choices":[{"text":"Pheonol","value":"A"},{"text":"Alcohol","value":"B"},{"text":"Alkane","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112184,"question":"Grignard's reagent on treatment with dry CO<sub>2</sub>and HCI yields","choices":[{"text":"Ester","value":"A"},{"text":"Alcohol","value":"B"},{"text":"Carboxylic acid","value":"C"},{"text":"Aldehyde","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112183,"question":"Grignard's reagent on treatment with chloramine give","choices":[{"text":"Acetamide","value":"A"},{"text":"Primary amice","value":"B"},{"text":"Secondary amice","value":"C"},{"text":"Urea","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112181,"question":"Hydrolysis of Grignard's reagent yields","choices":[{"text":"Alcohol","value":"A"},{"text":"Aldyhyde","value":"B"},{"text":"Ester","value":"C"},{"text":"Alkane","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112180,"question":"Alkyle magnesium halides are known as","choices":[{"text":"Simon-smith reagent","value":"A"},{"text":"Tollen's reagent","value":"B"},{"text":"Grignard's reagent","value":"C"},{"text":"Barford's reagent","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112177,"question":"A reaction in which an atom or a group of atoms replaces an atom or a group of atoms in the molecule of a substance is known as","choices":[{"text":"Addition reaction","value":"A"},{"text":"Condensation reaction","value":"B"},{"text":"Elimination reaction","value":"C"},{"text":"Substitution reaction","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112174,"question":"Alkyl halides on treatment with aqueous KOH give","choices":[{"text":"Phenol","value":"A"},{"text":"Alcohol","value":"B"},{"text":"Aldehyde","value":"C"},{"text":"Ketone","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112172,"question":"Action of Zn with alkyl halides in the presence of an inert solvent forms higher alkanes. This reaction is known as","choices":[{"text":"Wurtz reaction","value":"A"},{"text":"Frankland's reaction","value":"B"},{"text":"Cannizaro reaction","value":"C"},{"text":"Kalobe's reaction","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112171,"question":"Dehydrohalogenation of alkyl halides give","choices":[{"text":"Alkanes","value":"A"},{"text":"Alkenes","value":"B"},{"text":"Alkynes","value":"C"},{"text":"Alkdehyde","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112170,"question":"By reaction Grignard's reagent with the HCHO we get","choices":[{"text":"1° - alcohol","value":"A"},{"text":"2° - alcohol","value":"B"},{"text":"3° - alcohol","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112169,"question":"Alkyl halides on treatment with Zn and HCI gives","choices":[{"text":"Alkanes","value":"A"},{"text":"Alkenes","value":"B"},{"text":"Alkynes","value":"C"},{"text":"Alcohols","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112167,"question":"Alkyl halides on treatment with metallic Na give","choices":[{"text":"Alkynes","value":"A"},{"text":"Alkenes","value":"B"},{"text":"Alkanes","value":"C"},{"text":"Alcohols","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112165,"question":"The reaction of alcohol with SOCI<sub>2</sub>in the presence of pyridine as catalyst gives","choices":[{"text":"Acids","value":"A"},{"text":"Acid chloride","value":"B"},{"text":"Alkyl halide","value":"C"},{"text":"Benzene","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112162,"question":"Halogens on treating with silver salts of acids give","choices":[{"text":"Alcohol","value":"A"},{"text":"Ester","value":"B"},{"text":"Phenol","value":"C"},{"text":"Alkyl halide","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112160,"question":"E<sub>1</sub>mechanism is generally shown by","choices":[{"text":"1° - RX","value":"A"},{"text":"2° - RX","value":"B"},{"text":"3° - RX","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112159,"question":"When alkyl halides are heated with aqueous solution of ammonia at about 100°C, amines are formed. This reaction is known as","choices":[{"text":"Williamsons synthesis","value":"A"},{"text":"GHoffmans reaction","value":"B"},{"text":"Wurtz reaction","value":"C"},{"text":"Clemensen reaction","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112156,"question":"Alkanes may be prepared by the reaction of alkyl halides with","choices":[{"text":"Alcohol","value":"A"},{"text":"Carboxylic acid","value":"B"},{"text":"Grignard reagents","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112153,"question":"Reduction of alkyl halides give","choices":[{"text":"Alkanes","value":"A"},{"text":"Alkenes","value":"B"},{"text":"Ketones","value":"C"},{"text":"Ether","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112143,"question":"Alkyle halides can be prepared by treating halogen acids with","choices":[{"text":"Ethane","value":"A"},{"text":"Ethanol","value":"B"},{"text":"Ethene and ethanol","value":"C"},{"text":"Aldehyde","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112142,"question":"The general formula of alkyl halides is","choices":[{"text":"C<sub>n</sub>H<sub>2n</sub>X","value":"A"},{"text":"C<sub>n</sub>H<sub>2n-1</sub>X","value":"B"},{"text":"C<sub>n</sub>H<sub>2n+1</sub>X","value":"C"},{"text":"C<sub>n</sub>H<sub>2n-2</sub>X","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112141,"question":"The alkyl halide molecule on which a nucleophile attacks is called","choices":[{"text":"Substrate","value":"A"},{"text":"Subsituent","value":"B"},{"text":"Substituted","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112140,"question":"Which one of the following is not a nuclelphile","choices":[{"text":"H<sub>2</sub>O","value":"A"},{"text":"H<sub>2</sub>S","value":"B"},{"text":"BF<sub>3</sub>","value":"C"},{"text":"NH<sub>3</sub>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112139,"question":"The rate of E<sub>1</sub>reaction depends upon","choices":[{"text":"The concentration of substrate","value":"A"},{"text":"The concentration of nucleophile","value":"B"},{"text":"THe concentration of substrate as well as nucleophile","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112138,"question":"Alkyl halides are considered to be very reactive compounds towards nucleophiles because","choices":[{"text":"They have an electrophilic carbon","value":"A"},{"text":"They have an electrophilic carbon and a good leaving group","value":"B"},{"text":"They have an electrophilic carbon and a bad leaving group","value":"C"},{"text":"They have a nucleophilic carbon and a good leaving group","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112137,"question":"Both E<sub>1</sub>and E<sub>2</sub>mechanism can be shown by","choices":[{"text":"1° - RX","value":"A"},{"text":"2° - RX","value":"B"},{"text":"3° - RX","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112136,"question":"Elimination bimolecular reactions usually obey","choices":[{"text":"First order kinetics","value":"A"},{"text":"Second order kinetics","value":"B"},{"text":"Third order kinetics","value":"C"},{"text":"Zero order kinetics","value":"D"},{"value":"E"}],"correctAnswer":2}]