{"common":{"save":0,"post_id":"9051","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6855","post_id":"9051","mon_id":"1159892","chapter_id":"1159938","question":"<p data-pm-slice=\"0 0 []\">Khi ph\u1ea3n \u1ee9ng v\u1edbi kim lo\u1ea1i, sulfur th\u1ec3 hi\u1ec7n tính ch\u1ea5t gì?<\/p>","options":["A. tính kh\u1eed.","B. tính oxi hóa.","C. v\u1eeba tính oxi hóa, v\u1eeba tính kh\u1eed.","D. tính l\u01b0\u1ee1ng tính"],"correct":"2","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng: <strong>B. tính oxi hóa.<\/strong><\/p><p>Khi ph\u1ea3n \u1ee9ng v\u1edbi kim lo\u1ea1i, sulfur <strong data-end=\"115\" data-start=\"98\">nh\u1eadn electron<\/strong> t\u1eeb kim lo\u1ea1i \u0111\u1ec3 t\u1ea1o thành <strong data-end=\"161\" data-start=\"141\">mu\u1ed1i sunfua (MS)<\/strong> → sulfur <strong data-end=\"196\" data-start=\"171\">th\u1ec3 hi\u1ec7n tính oxi hóa<\/strong>.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-04-24 09:17:40","option_type":"txt","len":3},{"id":"6856","post_id":"9051","mon_id":"1159892","chapter_id":"1159938","question":"<p data-pm-slice=\"0 0 []\">Khi nung nóng h\u1ed7n h\u1ee3p b\u1ed9t g\u1ed3m 9,6 gam Sulfur và 22,4 gam Iron trong \u1ed1ng nghi\u1ec7m kín, không ch\u1ee9a không khí, sau khi ph\u1ea3n \u1ee9ng hoàn toàn thu \u0111\u01b0\u1ee3c r\u1eafn Y. Thành ph\u1ea7n c\u1ee7a r\u1eafn Y là<\/p>","options":["A. Fe.","B. Fe và FeS.","C. FeS.","D. S và FeS."],"correct":"2","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng: <strong>B. Fe và FeS.<\/strong><\/p><p data-end=\"113\" data-start=\"53\">nS = 9.6 \/ 32 = 0.3 mol<\/p><p data-end=\"176\" data-start=\"116\">nFe = 22.4 \/ 56 = 0.4 mol<\/p><p data-end=\"237\" data-start=\"178\">Ph\u1ea3n \u1ee9ng: Fe + S → FeS<\/p><p data-end=\"315\" data-start=\"239\">→ S h\u1ebft, Fe d\u01b0 → t\u1ea1o <strong data-end=\"267\" data-start=\"260\">FeS<\/strong> và còn d\u01b0 <strong data-end=\"284\" data-start=\"278\">Fe<\/strong> → <strong data-end=\"314\" data-start=\"287\">h\u1ed7n h\u1ee3p Y g\u1ed3m Fe và FeS<\/strong>.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-04-24 09:19:10","option_type":"txt","len":2},{"id":"6857","post_id":"9051","mon_id":"1159892","chapter_id":"1159938","question":"<p data-pm-slice=\"0 0 []\">Ch\u1ea5t \u0111\u01b0\u1ee3c dùng \u0111\u1ec3 t\u1ea9y tr\u1eafng gi\u1ea5y và b\u1ed9t gi\u1ea5y trong công nghi\u1ec7p là<\/p>","options":["A. N2O.","B. CO2.","C. SO2","D. NO2."],"correct":"3","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng: <strong>C. SO2<\/strong><\/p><p>SO2 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong công nghi\u1ec7p gi\u1ea5y \u0111\u1ec3 t\u1ea9y tr\u1eafng gi\u1ea5y và b\u1ed9t gi\u1ea5y nh\u1edd kh\u1ea3 n\u0103ng kh\u1eed các ch\u1ea5t màu.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-04-24 09:19:55","option_type":"txt","len":0}]}
