[{"id":112395,"question":"Which one of the following reagents will distinguish between C<sub>6</sub>H<sub>5</sub>CHO and C<sub>6</sub>H<sub>5</sub>COCH<sub>3</sub>","choices":[{"text":"Aqueous bromine","value":"A"},{"text":"Phosphorus pentachloride","value":"B"},{"text":"2, 4 DNPH","value":"C"},{"text":"Tollen's reagent","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112388,"question":"Aldelydes are the oxidation product of","choices":[{"text":"P-alcohols","value":"A"},{"text":"s-alcohols","value":"B"},{"text":"ter-alcohols","value":"C"},{"text":"carboxylic acids","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112387,"question":"The color of ppts formed by Benedirct's test is","choices":[{"text":"Brick red","value":"A"},{"text":"Wine red","value":"B"},{"text":"Yellow","value":"C"},{"text":"Orange","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112386,"question":"Which of the following compounds will react with Tollen's reagent","choices":[{"text":"","img":"112386_636320906691374968-RA1.jpg","value":"A"},{"text":"","img":"112386_636320906691374968-RA2.jpg","value":"B"},{"text":"","img":"112386_636320906691374968-RA3.jpg","value":"C"},{"text":"","img":"112386_636320906691374968-RA4.jpg","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112380,"question":"The catalytic prmoter used for the industrial preparation of acetaldehyde is","choices":[{"text":"PdCI<sub>2</sub>","value":"A"},{"text":"CuCI<sub>2</sub>","value":"B"},{"text":"Pd + CaCI<sub>2</sub>","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112378,"question":"Acetone reacts with HCN to form a cyanohydrin. It is an example of","choices":[{"text":"Electrophilic addition","value":"A"},{"text":"Electrophilic substitution","value":"B"},{"text":"Nucleophilic addition","value":"C"},{"text":"Nucleophilic substitution","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":112376,"question":"Ketones are prepared by the oxidation of","choices":[{"text":"Primary alcohol","value":"A"},{"text":"Secondary alcohol","value":"B"},{"text":"Tertiary alcohol","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112374,"question":"Which of the following will have the highest boiling point","choices":[{"text":"Methanol","value":"A"},{"text":"Ethanol","value":"B"},{"text":"Propanal","value":"C"},{"text":"2-hexanone","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112372,"question":"Which of the following is halo form","choices":[{"text":"CHBr<sub>3</sub>","value":"A"},{"text":"CHCI<sub>3</sub>","value":"B"},{"text":"CHI<sub>3</sub>","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112370,"question":"The carbon atom of a carbonyl group is","choices":[{"text":"Sp hybridized","value":"A"},{"text":"Sp<sup>2</sup>hybridized","value":"B"},{"text":"Sp<sup>3</sup>hybridized","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112369,"question":"Which is used for the reduction of aldehydes and ketones","choices":[{"text":"NaBH<sub>4</sub>","value":"A"},{"text":"Pt/Pd","value":"B"},{"text":"Ni","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112368,"question":"Ketones are reduced to","choices":[{"text":"Primary alcohol","value":"A"},{"text":"Secondary alcohol","value":"B"},{"text":"Tertiary alcohol","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":112367,"question":"Aldehydes can be distinguished from ketones by","choices":[{"text":"2,4-DNPH test","value":"A"},{"text":"NaHSO<sub>3</sub>test","value":"B"},{"text":"N<sub>2</sub>H<sub>4</sub>test","value":"C"},{"text":"Tollen's test","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112366,"question":"The colour of ppts formed by Fehling's test is","choices":[{"text":"Brick red","value":"A"},{"text":"Red","value":"B"},{"text":"Yellow","value":"C"},{"text":"Orange","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112362,"question":"Aldehyde and small methyl ketones form crystalline ______ ppts with saturated sodium bisulphate solution","choices":[{"text":"White","value":"A"},{"text":"Red","value":"B"},{"text":"Yellow","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112361,"question":"In Tolten's best, the end product is ______ formed","choices":[{"text":"White ppts","value":"A"},{"text":"Red ppts","value":"B"},{"text":"Yellow ppts","value":"C"},{"text":"Silver mirror","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112359,"question":"","questionImage":"112359_636320891644144768-RQ.jpg","choices":[{"text":"Treatment with HCN followed by acid hydrolysis","value":"A"},{"text":"Oxidation of acetaldehyde followed by basic hydrolysis","value":"B"},{"text":"Treatment with HCN followed by reduction","value":"C"},{"text":"Treatment with HCN followed by oxidation","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112356,"question":"Distillation of calcium salts of acetic acid and formic acids gives acetaldehyde. What compound would be obtained if only calcium salt of acetic acid is distilled","choices":[{"text":"Formaldehyde","value":"A"},{"text":"Butyraldehyde","value":"B"},{"text":"Propionaldehyde","value":"C"},{"text":"Acetone","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":112353,"question":"Chromic acid used to oxidize","choices":[{"text":"Aldehyde","value":"A"},{"text":"Ketone","value":"B"},{"text":"Both a and b","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":112351,"question":"","questionImage":"112351_636320887457346548-RQ.bmp","choices":[{"text":"2-chlorobutanal","value":"A"},{"text":"alfa-chlorobutanal","value":"B"},{"text":"2-chlorobutyraldehyde","value":"C"},{"text":"alfa- chlorobutyraldehyde","value":"D"},{"value":"E"}],"correctAnswer":1}]