Acid - trung bình

Home Lớp 8 Khoa học tự nhiên 8 - sách Kết nối tri thức Bài 8: AcidBài tập trung bình

{"common":{"save":0,"post_id":"8558","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7849","post_id":"8558","mon_id":"1159539","chapter_id":"1159543","question":"\u1ee8ng d\u1ee5ng nào không ph\u1ea3i c\u1ee7a hydrochloric acid:<\/p>","options":["A. T\u1ea9y r\u1eeda kim lo\u1ea1i","B. S\u1ea3n xu\u1ea5t ch\u1ea5t d\u1ebbo","C. S\u1ea3n xu\u1ea5t d\u01b0\u1ee3c ph\u1ea9m","D. S\u1ea3n xu\u1ea5t gi\u1ea5y, t\u01a1 s\u1ee3i"],"correct":"4","level":"2","hint":"Cân nh\u1eafc công d\u1ee5ng c\u1ee7a acid hydrochloric trong công nghi\u1ec7p và các l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t.<\/p>","answer":"\u0110áp án \u0111úng: D. S\u1ea3n xu\u1ea5t gi\u1ea5y, t\u01a1 s\u1ee3i<\/strong><\/p>Hydrochloric acid ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong các ngành t\u1ea9y r\u1eeda kim lo\u1ea1i, s\u1ea3n xu\u1ea5t ch\u1ea5t d\u1ebbo và d\u01b0\u1ee3c ph\u1ea9m. Tuy nhiên, nó ít \u0111\u01b0\u1ee3c dùng trong s\u1ea3n xu\u1ea5t gi\u1ea5y và t\u01a1 s\u1ee3i.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-03-01 21:03:15","option_type":"txt","len":2},{"id":"7850","post_id":"8558","mon_id":"1159539","chapter_id":"1159543","question":"Tên g\u1ecdi c\u1ee7a H$_{2}$<\/span>SO$_{3}$<\/span> là:<\/p>","options":["A. Hi\u0111rosunfua","B. Axit sunfuric","C. Axit sunfuhi\u0111ric","D. Axit sunfur\u01a1"],"correct":"4","level":"2","hint":"Tên g\u1ecdi c\u1ee7a h\u1ee3p ch\u1ea5t này liên quan \u0111\u1ebfn m\u1ed9t d\u1ea1ng axit c\u1ee7a l\u01b0u hu\u1ef3nh trong tr\u1ea1ng thái oxy hóa th\u1ea5p.<\/p>","answer":"\u0110áp án \u0111úng: D. Axit sunfur\u01a1<\/strong><\/p>H$_{2}$<\/span>SO$_{3}$<\/span> là axit sunfur\u01a1, khác v\u1edbi axit sunfuric (H$_{2}$<\/span>SO$_{4}$<\/span>).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-03-01 21:04:53","option_type":"txt","len":2},{"id":"7851","post_id":"8558","mon_id":"1159539","chapter_id":"1159543","question":"\u1ee8ng d\u1ee5ng c\u1ee7a acetic acid là:<\/p>","options":["A. S\u1ea3n xu\u1ea5t thu\u1ed1c di\u1ec7t côn trùng","B. S\u1ea3n xu\u1ea5t s\u01a1n","C. S\u1ea3n xu\u1ea5t phân bón","D. S\u1ea3n xu\u1ea5t \u1eafc quy"],"correct":"2","level":"2","hint":"Acetic acid là m\u1ed9t h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 ph\u1ed5 bi\u1ebfn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong công nghi\u1ec7p hóa ch\u1ea5t, nh\u01b0ng không ph\u1ea3i t\u1ea5t c\u1ea3 các \u1ee9ng d\u1ee5ng trong danh sách \u0111\u1ec1u liên quan \u0111\u1ebfn \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a nó.<\/p>","answer":"\u0110áp án \u0111úng: B. S\u1ea3n xu\u1ea5t s\u01a1n<\/strong><\/p>Acetic acid \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t s\u01a1n nh\u1edd vào tính ch\u1ea5t là dung môi trong các h\u1ee3p ch\u1ea5t hóa h\u1ecdc.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-03-01 21:06:07","option_type":"txt","len":2}]}