[{"id":120009,"question":"What is the total number of different chloroethanes, formula C<sub>2</sub>H<sub>6-n</sub>Cl<sub>n</sub>, where n can be any integer from 1 to 4","choices":[{"text":"4","value":"A"},{"text":"6","value":"B"},{"text":"7","value":"C"},{"text":"8","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":120008,"question":"","questionImage":"120008_636338068591188600-RQ.jpg","choices":[{"text":"Condensation","value":"A"},{"text":"Electrophilic substitution","value":"B"},{"text":"Free radical substitution","value":"C"},{"text":"Nucleophilic substitution","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":120007,"question":"Each of the following compounds is effective as a refrigerant. The release of which one of these causes the greatest depletion of the ozone layer","choices":[{"text":"CCl<sub>2</sub>F<sub>2</sub>","value":"A"},{"text":"CH<sub>3</sub>OCH<sub>3</sub>","value":"B"},{"text":"CH<sub>3</sub>CHF<sub>2</sub>","value":"C"},{"text":"CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":120006,"question":"CFCs undergo homolytic fission by uv light in the stratosphere which radical could result from this irradiations of CHCICF<sub>2</sub>Cl.","choices":[{"text":"CHF Cl C FCl","value":"A"},{"text":"CH Cl CF<sub>2</sub>Cl","value":"B"},{"text":"CHF CF<sub>2</sub>Cl","value":"C"},{"text":"C FCl CF<sub>2</sub>Cl","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":120005,"question":"What is the total number of different chloroethanes of formula C<sub>2</sub>H<sub>6-n</sub>Cl<sub>n</sub>possible (n may be 1 to 6)","choices":[{"text":"6","value":"A"},{"text":"8","value":"B"},{"text":"9","value":"C"},{"text":"10","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":120004,"question":"","questionImage":"120004_636337482738374940-RQ.jpg","choices":[{"text":"Electrophilic addition","value":"A"},{"text":"Electrophilic substitution","value":"B"},{"text":"Free radical substitution","value":"C"},{"text":"Nuclophilic addition","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":120003,"question":"Which one of the following is not a nucleophile","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":120001,"question":"Alkyl halides ae 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":119999,"question":"When CO<sub>2</sub>is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is","choices":[{"text":"Propane","value":"A"},{"text":"Propanoic acid","value":"B"},{"text":"Propanal","value":"C"},{"text":"Propanol","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119996,"question":"Grignard's reagent is","choices":[{"text":"Alkyl halide","value":"A"},{"text":"Magnesium halide","value":"B"},{"text":"Alkyl magnesium halide","value":"C"},{"text":"Ethereal solution of an alkyl halide","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119995,"question":"When formaldehyde is added to Grignard reagent we get","choices":[{"text":"Aldehyde","value":"A"},{"text":"Acetone","value":"B"},{"text":"Primary alcohol","value":"C"},{"text":"Secondary alcohol","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119993,"question":"The compounds or species in search of electrons are called","choices":[{"text":"Elctrophiles","value":"A"},{"text":"Nucleophile","value":"B"},{"text":"Nitrities","value":"C"},{"text":"Bases","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119991,"question":"Thre rate of S<sub>N</sub>2 reaction depends upon the","choices":[{"text":"Concentration of alkyl halides","value":"A"},{"text":"Concentration of nucleophile","value":"B"},{"text":"Concentration of alkyl halides and nucleophile","value":"C"},{"text":"None of the above","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119989,"question":"When alkyl halide is heated with aqueous solution of ammonia at 100°C the major product is","choices":[{"text":"Primary amine","value":"A"},{"text":"Secondary amine","value":"B"},{"text":"Tertiary amine","value":"C"},{"text":"Mixture of amines and salt","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119987,"question":"Which of the following alkyl halides is used as a mathylating agent","choices":[{"text":"CH<sub>2</sub>H<sub>5</sub>l","value":"A"},{"text":"CH<sub>3</sub>l","value":"B"},{"text":"C<sub>2</sub>H<sub>5</sub>Pr","value":"C"},{"text":"C<sub>2</sub>H<sub>5</sub>Cl","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112222,"question":"The elimination of hydrogen halide from adjacent carbon atoms is called","choices":[{"text":"Dehydrogenation","value":"A"},{"text":"Hydrogenation","value":"B"},{"text":"Dehydrohalogenation","value":"C"},{"text":"Hydrohalogenation","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112221,"question":"Ethyl bromide is formed by the reaction of HBr with","choices":[{"text":"Ethane","value":"A"},{"text":"Ethene","value":"B"},{"text":"Ethyne","value":"C"},{"text":"Propane","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112220,"question":"A carbon atom carrying a postitive charge and attached to three other atoms of groups is called","choices":[{"text":"Caronium ion","value":"A"},{"text":"Carbanion","value":"B"},{"text":"Oconium ion","value":"C"},{"text":"Carba ion","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112219,"question":"Alkyl halides in which a halogen atom is bonded to that carbon atom which directly bonded with one hydrogen atom is called","choices":[{"text":"Primary alkyl halides","value":"A"},{"text":"Secondary alkyl halides","value":"B"},{"text":"Tertiary alkyl halides","value":"C"},{"text":"Quaternary alkyl halides","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112218,"question":"Which of the following compounds will form a hydrocarbon on reaction with Grignard reagent","choices":[{"text":"A ketone","value":"A"},{"text":"An aldehyde","value":"B"},{"text":"An ether","value":"C"},{"text":"Water","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112217,"question":"Which of the following is a nucleophile","choices":[{"text":"OH","value":"A"},{"text":"CH(CH<sub>3</sub>)<sub>3</sub>","value":"B"},{"text":"CH<sub>3</sub><sup>+</sup>","value":"C"},{"text":"CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112216,"question":"Any other aldehyde except formaldehyde on reaction with Grignard's will produce","choices":[{"text":"Secondary alcohol","value":"A"},{"text":"Primary alcohol","value":"B"},{"text":"Tertiary alcohol","value":"C"},{"text":"Aromatic alcohol","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112213,"question":"If ketone reacts with Grignard's reagent, it also produces alcohol, But it will be a","choices":[{"text":"primary alcohol","value":"A"},{"text":"Secondary alcohol","value":"B"},{"text":"Tertiary alcohol","value":"C"},{"text":"Aromatic alcohol","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112211,"question":"Alcohol can be prepared from Grignard's reagent with an aldehyde: If we start with formaldehyde the product alcohol with be","choices":[{"text":"Primary","value":"A"},{"text":"Secondary","value":"B"},{"text":"Territory","value":"C"},{"text":"Aromatic","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112210,"question":"If carbon dioxide is bubbled through solution of Grignard's reagent in ether and the resultant product is reacted with hydrochloric acid, it gives","choices":[{"text":"An alkane","value":"A"},{"text":"Al alcohol","value":"B"},{"text":"A carboxylic acid","value":"C"},{"text":"An aldehyde","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112209,"question":"If Grignard reagent is allowed to react with another alkyl halide the main product is","choices":[{"text":"An alkane","value":"A"},{"text":"Cyclo alkane","value":"B"},{"text":"Alkyne","value":"C"},{"text":"An alkene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112207,"question":"Ammonia like water also reacts with Grignard's reagent to give","choices":[{"text":"Alkane","value":"A"},{"text":"Alkene","value":"B"},{"text":"Alkyne","value":"C"},{"text":"Amide","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112205,"question":"By simply reacting Grignand's reagent with water we get","choices":[{"text":"An alkane","value":"A"},{"text":"Higher alkane","value":"B"},{"text":"An alkene","value":"C"},{"text":"An alkyne","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112203,"question":"Which of the following compounds could be prepared by reacting bromoethane with KCN and then reducing the product","choices":[{"text":"CH<sub>3</sub>CH<sub>3</sub>","value":"A"},{"text":"CH<sub>3</sub>CH<sub>2</sub>NH<sub>2</sub>","value":"B"},{"text":"CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub>","value":"C"},{"text":"CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112200,"question":"In which of the following reactions is the inorganic reagent acting as a nucleophile","choices":[{"text":"","img":"112200_636320807210867301-RA1.jpg","value":"A"},{"text":"","img":"112200_636320807210867301-RA2.jpg","value":"B"},{"text":"","img":"112200_636320807210867301-RA3.jpg","value":"C"},{"text":"","img":"112200_636320807210867301-RA4.jpg","value":"D"},{"value":"E"}],"correctAnswer":3}]