Quiz — série-n°12-mouvement-rectiligne-les-alcools--2011-2012(adam-bouali).pdf

Question 1 sur 10 20:00

[{"id":32560,"question":"Quel est le groupe fonctionnel caractéristique des alcools ?","option_a":"A. -COOH","option_b":"B. -OH","option_c":"C. -CHO","option_d":"D. -NH2","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le groupe fonctionnel des alcools est le groupe hydroxyle (-OH), présent dans la molécule.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. -COOH\", \"b\": \"B. -OH\", \"c\": \"C. -CHO\", \"d\": \"D. -NH2\"}}","_debug_options_count":4},{"id":32561,"question":"Un alcool tertiaire possède combien d'atomes de carbone liés à l'atome d'oxygène ?","option_a":"A. 1","option_b":"B. 2","option_c":"C. 3","option_d":"D. 4","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un alcool tertiaire a trois atomes de carbone liés à l'atome d'oxygène.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"A. 1\", \"b\": \"B. 2\", \"c\": \"C. 3\", \"d\": \"D. 4\"}}","_debug_options_count":4},{"id":32562,"question":"Le mouvement rectiligne uniforme a une accélération nulle.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Dans un mouvement rectiligne uniforme, la vitesse est constante, donc l'accélération est bien nulle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":32563,"question":"Quelle est la formule générale des alcools saturés ?","option_a":"A. CnH2n+2O","option_b":"B. CnH2nO","option_c":"C. CnH2n-2O","option_d":"D. CnH2n+1O","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formule générale des alcools saturés est CnH2n+2O, où n est le nombre d'atomes de carbone.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"A. CnH2n+2O\", \"b\": \"B. CnH2nO\", \"c\": \"C. CnH2n-2O\", \"d\": \"D. CnH2","_debug_options_count":4},{"id":32564,"question":"Dans un mouvement rectiligne accéléré, la trajectoire est toujours une droite.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un mouvement rectiligne accéléré suit une trajectoire rectiligne, mais la vitesse varie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":32565,"question":"Quel alcool est le plus soluble dans l'eau : l'éthanol ou le butanol ?","option_a":"A. Éthanol","option_b":"B. Butanol","option_c":"C. Les deux sont également solubles","option_d":"D. Aucun des deux","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'éthanol (C2H5OH) est plus soluble dans l'eau que le butanol (C4H9OH) en raison de sa polarité plus marquée.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"A. Éthanol\", \"b\": \"B. Butanol\", \"c\": \"C. Les deux sont égalemen","_debug_options_count":4},{"id":32566,"question":"La vitesse d'un mobile en mouvement rectiligne est donnée par la relation v = d\/t. Que représente 't' ?","option_a":"A. Distance parcourue","option_b":"B. Temps écoulé","option_c":"C. Accélération","option_d":"D. Vitesse initiale","option_e":"","option_f":"","bonne_reponse":"b","explication":"'t' représente le temps écoulé pour parcourir la distance 'd'.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Distance parcourue\", \"b\": \"B. Temps écoulé\", \"c\": \"C. Accél","_debug_options_count":4},{"id":32567,"question":"Les alcools tertiaires sont-ils plus réactifs que les alcools primaires ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Les alcools tertiaires sont moins réactifs que les alcools primaires en raison de l'encombrement stérique autour du groupe -OH.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":32568,"question":"Quelle est la vitesse d'un mobile parcourant 100 m en 20 s ?","option_a":"A. 2 m\/s","option_b":"B. 5 m\/s","option_c":"C. 10 m\/s","option_d":"D. 20 m\/s","option_e":"","option_f":"","bonne_reponse":"b","explication":"La vitesse v = d\/t = 100 m \/ 20 s = 5 m\/s.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. 2 m\/s\", \"b\": \"B. 5 m\/s\", \"c\": \"C. 10 m\/s\", \"d\": \"D. 20 m\/s\"}}","_debug_options_count":4},{"id":32569,"question":"Quel type de réaction permet de transformer un alcool en alcène ?","option_a":"A. Oxydation","option_b":"B. Déshydratation","option_c":"C. Estérification","option_d":"D. Combustion","option_e":"","option_f":"","bonne_reponse":"b","explication":"La déshydratation d'un alcool permet de former un alcène en éliminant une molécule d'eau.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. Oxydation\", \"b\": \"B. Déshydratation\", \"c\": \"C. Estérificatio","_debug_options_count":4}]