[{"id":226383,"question":"Which alkyne reacts with water and form aldehyde","choices":[{"text":"Ethyne","value":"A"},{"text":"Propyne","value":"B"},{"text":"1- Butyne","value":"C"},{"text":"2- Butyne","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":226382,"question":"Ethyne on oxidation with strong alkaline KMnO4 changes to","choices":[{"text":"Ethyl alcohol","value":"A"},{"text":"Acetaldehyde","value":"B"},{"text":"Vinyl alcohol","value":"C"},{"text":"Glyoxal","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226381,"question":"Which has reddish brown colour.","choices":[{"text":"silver acetylide","value":"A"},{"text":"Copper acetylide","value":"B"},{"text":"BaSO4","value":"C"},{"text":"Aqueous KMnO4 solution","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":226380,"question":"The number of acidic hydrogen present in 1- Propyne is","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":226379,"question":"Which one of the following is formed when ethyne is heated in copper tube at 300 <sup>o</sup>C","choices":[{"text":"Ethene","value":"A"},{"text":"Ethane","value":"B"},{"text":"Benzene","value":"C"},{"text":"Cyclohexane","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":226378,"question":"Which one of the following substances have garlic odour and a colourless gas.","choices":[{"text":"CH3OH","value":"A"},{"text":"HCOOH","value":"B"},{"text":"CH2=CH2","value":"C"},{"text":"HC= CH","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226377,"question":"Acetylene polymerized in the presence of ammonium chloride and cuprous chloride ot form.","choices":[{"text":"Benzene","value":"A"},{"text":"PVC","value":"B"},{"text":"Di vieiyl acetylene","value":"C"},{"text":"Polyethene","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":226376,"question":"Acetylene reacts with ammoniacal cuprous chloride a red ppt is formed. This red ppt is of","choices":[{"text":"Copper chlorite","value":"A"},{"text":"Coper chlorate","value":"B"},{"text":"Cupric oxide","value":"C"},{"text":"Copper acetylide","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226375,"question":"Which one is alcylic compound","choices":[{"text":"Pyridine","value":"A"},{"text":"Toluene","value":"B"},{"text":"Ethyl Benzene","value":"C"},{"text":"Ethylcyclobutane","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226374,"question":"Which one of the following gases is used welding purpose usualy.","choices":[{"text":"Methane","value":"A"},{"text":"Ethane","value":"B"},{"text":"Ethene","value":"C"},{"text":"Acetylene","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226373,"question":"Which one of the following gases is used in welding purpose usually","choices":[{"text":"Methane","value":"A"},{"text":"Ethane","value":"B"},{"text":"Ethene","value":"C"},{"text":"Acetylene","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226372,"question":"Which one of the following compounds will form red precipitate with ammoniacal cuprous chloride","choices":[{"text":"Acetylene","value":"A"},{"text":"Ethylene","value":"B"},{"text":"Benzene","value":"C"},{"text":"Methane","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":226371,"question":"Vinyl chloride when boiled with alcoholic KOH , gives","choices":[{"text":"Acetylene","value":"A"},{"text":"Ethylene","value":"B"},{"text":"Ethene","value":"C"},{"text":"Ethyl alcohol","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":226370,"question":"Ranney nickel is prepared by reacting dilute NaOH solution with.","choices":[{"text":"Nickel","value":"A"},{"text":"Brass","value":"B"},{"text":"Nickel and aluminum alloy","value":"C"},{"text":"Nickel oxide","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":226369,"question":"Raney Nickel is","choices":[{"text":"Nickel compound","value":"A"},{"text":"Naturally occurring nickel","value":"B"},{"text":"Spongy form of a nickel","value":"C"},{"text":"Alloy of nickel","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":226368,"question":"Sodalime is","choices":[{"text":"NaOH","value":"A"},{"text":"Mixture of Na and Ca(OH)2","value":"B"},{"text":"KOH","value":"C"},{"text":"Mixture of CaO and NaOH","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":226367,"question":"A gas decolorizes alkaline KMnO4 but has no action with ammoniacal AgNO3, this gas may be","choices":[{"text":"C2H2","value":"A"},{"text":"C2H4","value":"B"},{"text":"C2H6","value":"C"},{"text":"CH4","value":"D"},{"value":"E"}],"correctAnswer":2}]