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{“questions”:{“wi26q”:{“id”:”wi26q”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 2013\r\n\r\n \r\nQuanti isomeri strutturali della molecola C4H9Br esistono?\r\n“,”desc”:””,”hint”:””,”answers”:{“pq2i7”:{“id”:”pq2i7″,”image”:””,”imageId”:””,”title”:”A) 4″,”isCorrect”:”1″},”txxt0″:{“id”:”txxt0″,”image”:””,”imageId”:””,”title”:”B) 6″},”ez3d9″:{“id”:”ez3d9″,”image”:””,”imageId”:””,”title”:”C) 2″},”d2t4r”:{“id”:”d2t4r”,”image”:””,”imageId”:””,”title”:”D) 5″},”tr0ex”:{“id”:”tr0ex”,”image”:””,”imageId”:””,”title”:”E) 3″}}}},”results”:{“iu5gu”:{“id”:”iu5gu”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” C4H10Br\u00a0\u00e8 un alogenuro alchilico dato da un atomo di bromo Br che sostituisce un atomo …

{“questions”:{“ce2ts”:{“id”:”ce2ts”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 2008\r\n\r\n \r\nChe cosa sono gli enantiomeri?\r\n“,”desc”:””,”hint”:””,”answers”:{“wkyfg”:{“id”:”wkyfg”,”image”:””,”imageId”:””,”title”:”A) Isomeri ottici che non sono l\u2019uno l\u2019immagine speculare dell\u2019altro”},”gjgv4″:{“id”:”gjgv4″,”image”:””,”imageId”:””,”title”:”B) Isomeri strutturali senza particolari propriet\u00e0″},”8ryxo”:{“id”:”8ryxo”,”image”:””,”imageId”:””,”title”:”C) Isomeri ottici che sono l\u2019uno l\u2019immagine speculare dell\u2019altro”,”isCorrect”:”1″},”6osqj”:{“id”:”6osqj”,”image”:””,”imageId”:””,”title”:”D) …

{“questions”:{“6vl2c”:{“id”:”6vl2c”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 2008\r\n\r\n \r\nSi definiscono isomeri, composti \u2026\r\n“,”desc”:””,”hint”:””,”answers”:{“ed17q”:{“id”:”ed17q”,”image”:””,”imageId”:””,”title”:”A) con diversa formula molecolare ma stessa disposizione nello spazio”},”j769a”:{“id”:”j769a”,”image”:””,”imageId”:””,”title”:”B) che hanno la stessa formula molecolare e diversa disposizione nello spazio”,”isCorrect”:”1″},”2lc4n”:{“id”:”2lc4n”,”image”:””,”imageId”:””,”title”:”C) che appartengono …

{“questions”:{“0tie0”:{“id”:”0tie0″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nodontoiatria 2004\r\n\r\n \r\nSe la soluzione di un composto \u00e8 in grado di deviare la luce polarizzata:\r\n“,”desc”:””,”hint”:””,”answers”:{“kzgcw”:{“id”:”kzgcw”,”image”:””,”imageId”:””,”title”:”A) il composto contiene almeno un doppio legame”},”m8cen”:{“id”:”m8cen”,”image”:””,”imageId”:””,”title”:”B) il composto presenta almeno un atomo …

{“questions”:{“x668g”:{“id”:”x668g”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nodontoiatria 2003\r\n\r\n \r\nQuando un composto presenta il fenomeno della stereoisomeria ottica, in esso \u00e8 presente almeno: \r\n“,”desc”:””,”hint”:””,”answers”:{“c437j”:{“id”:”c437j”,”image”:””,”imageId”:””,”title”:”A) un atomo di carbonio ibridato sp2 “},”kzut1”:{“id”:”kzut1″,”image”:””,”imageId”:””,”title”:”B) un doppio legame “},”6pkci”:{“id”:”6pkci”,”image”:””,”imageId”:””,”title”:”C) un …

{“questions”:{“4nvbi”:{“id”:”4nvbi”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nveterinaria 2002\r\n\r\n \r\n\u201cGli ioni di ammonio quaternari in cui i quattro residui alchilici sono diversi l\u2019uno dall\u2019altro, presentano il fenomeno della stereoisomeria ottica. Cos\u00ec, per esempio, il metil-etil-propil-isobutil-ammonio esiste …

{“questions”:{“nqkbb”:{“id”:”nqkbb”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nodontoiatria 2002\r\n\r\n \r\nUn atomo di carbonio si definisce terziario se: \r\n“,”desc”:””,”hint”:””,”answers”:{“78fs6”:{“id”:”78fs6″,”image”:””,”imageId”:””,”title”:”A) \u00e8 il terzo della catena carboniosa “},”vhg6j”:{“id”:”vhg6j”,”image”:””,”imageId”:””,”title”:”B) \u00e8 coinvolto in un triplo legame “},”6kc99”:{“id”:”6kc99″,”image”:””,”imageId”:””,”title”:”C) \u00e8 legato ad altri …

{“questions”:{“zjm6p”:{“id”:”zjm6p”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 2000\r\n\r\n \r\nL’attivit\u00e0 ottica \u00e8 dovuta alla presenza nella molecola di:\r\n“,”desc”:””,”hint”:””,”answers”:{“5zthu”:{“id”:”5zthu”,”image”:””,”imageId”:””,”title”:”A) un triplo legame”},”4p4tu”:{“id”:”4p4tu”,”image”:””,”imageId”:””,”title”:”B) almeno un atomo di C asimmetrico”,”isCorrect”:”1″},”4y6g5″:{“id”:”4y6g5″,”image”:””,”imageId”:””,”title”:”C) un doppio legame”},”il430″:{“id”:”il430″,”image”:””,”imageId”:””,”title”:”D) una struttura ciclica”},”93ui3″:{“id”:”93ui3″,”image”:””,”imageId”:””,”title”:”E) due gruppi funzionali …

{“questions”:{“t0q2x”:{“id”:”t0q2x”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 2000\r\n\r\n \r\nIl cicloesano:\r\n“,”desc”:””,”hint”:””,”answers”:{“7hthm”:{“id”:”7hthm”,”image”:””,”imageId”:””,”title”:”A) presenta carattere aromatico”},”n9c71″:{“id”:”n9c71″,”image”:””,”imageId”:””,”title”:”B) \u00e8 costituito da 6 atomi di C e 6 atomi di H”},”0r1ia”:{“id”:”0r1ia”,”image”:””,”imageId”:””,”title”:”C) possiede atomi di C ibridati sp”},”gcfbj”:{“id”:”gcfbj”,”image”:””,”imageId”:””,”title”:”D) ha struttura non planare”,”isCorrect”:”1″},”gl1is”:{“id”:”gl1is”,”image”:””,”imageId”:””,”title”:”E) …

{“questions”:{“li1lo”:{“id”:”li1lo”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nmedicina 1999\r\n\r\n \r\nDue atomi di carbonio asimmetrici sono entrambi:\r\n“,”desc”:””,”hint”:””,”answers”:{“v86jg”:{“id”:”v86jg”,”image”:””,”imageId”:””,”title”:”A) legati agli stessi raggruppamenti”},”qbecj”:{“id”:”qbecj”,”image”:””,”imageId”:””,”title”:”B) ibridati sp3“,”isCorrect”:”1″},”5zy2k”:{“id”:”5zy2k”,”image”:””,”imageId”:””,”title”:”C) non ibridati”},”1gf16″:{“id”:”1gf16″,”image”:””,”imageId”:””,”title”:”D) ibridati sp”},”475es”:{“id”:”475es”,”image”:””,”imageId”:””,”title”:”E) appartenenti alla serie stereochimica D”}}}},”results”:{“r5si9”:{“id”:”r5si9″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Quando si parla di \”atomo …