{"save":1,"level":1,"time":"50","total":40,"point":5,"segment":[{"id":"5216","test_id":"532","question":"<p>Trong c&ocirc;ng nghi\u1ec7p, kim lo\u1ea1i n&agrave;o sau \u0111&acirc;y \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u01b0\u01a1ng ph&aacute;p nhi\u1ec7t luy\u1ec7n?<\/p>","options":["<strong>A.<\/strong>&nbsp;Fe.","<strong>B.<\/strong>&nbsp;Na.","<strong>C.<\/strong>&nbsp;Ca.","<strong>D.<\/strong>&nbsp;Al."],"correct":"1","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;Fe.<\/span><\/p><p>Trong c&ocirc;ng nghi\u1ec7p, kim lo\u1ea1i Fe \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u01b0\u01a1ng ph&aacute;p nhi\u1ec7t luy\u1ec7n (d&ugrave;ng CO kh\u1eed oxide s\u1eaft th&agrave;nh s\u1eaft).<\/p>","type":"choose","user_id":"131","test":"3","date":"2025-06-11 12:36:48"},{"id":"5217","test_id":"532","question":"<p>T&iacute;nh ch\u1ea5t n&agrave;o sau \u0111&acirc;y <strong>kh&ocirc;ng ph\u1ea3i<\/strong> l&agrave; t&iacute;nh ch\u1ea5t v\u1eadt l&iacute; chung c\u1ee7a kim lo\u1ea1i?<\/p>","options":["<strong>A.<\/strong>&nbsp;T&iacute;nh c\u1ee9ng.","<strong>B.<\/strong>&nbsp;T&iacute;nh d\u1ebbo.","<strong>C.<\/strong>&nbsp;T&iacute;nh d\u1eabn nhi\u1ec7t.","<strong>D.<\/strong>&nbsp;T&iacute;nh d\u1eabn \u0111i\u1ec7n."],"correct":"1","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;T&iacute;nh c\u1ee9ng.<\/span><\/p><p>T&iacute;nh c\u1ee9ng&nbsp;kh&ocirc;ng ph\u1ea3i l&agrave; t&iacute;nh ch\u1ea5t v\u1eadt l&iacute; chung c\u1ee7a kim lo\u1ea1i.<\/p><p>T&iacute;nh ch\u1ea5t v\u1eadt l&iacute; chung c\u1ee7a kim lo\u1ea1i do electron t\u1ef1 do g&acirc;y ra. T&iacute;nh c\u1ee9ng ph\u1ee5 thu\u1ed9c c\u1ea5u tr&uacute;c m\u1ea1ng tinh th\u1ec3, \u0111\u1ed9 b\u1ec1n li&ecirc;n k\u1ebft kim lo\u1ea1i, ...<\/p>","type":"choose","user_id":"131","test":"1","date":"2025-06-11 12:40:56"}]}