{"id":"b21-2017-czerwiec-egzamin-zawodowy-pisemny/zad/5","paper_id":"b21-2017-czerwiec-egzamin-zawodowy-pisemny","number":"5","points":null,"ptype":"closed","subject":"b21","category":"egzamin-zawodowy","year":2017,"month":"czerwiec","level":null,"text":"Zadanie 5.\nPodstawowym składnikiem biogazu jest\nA. etan.\nB.\nbutan.\nC.\nmetan.\nD. propan.","answer":"C","answer_text":"C\n25\nC","solution":null,"image":"img/b21-2017-czerwiec-egzamin-zawodowy-pisemny/zad-5.webp","solution_image":null,"topics":null,"page_from":2,"source":"ocr","answer_source":"ocr","answer_text_source":"ocr","solution_source":null,"text_source":"ocr","source_label":"B21 · Egzamin zawodowy · czerwiec 2017","subject_label":"b21","category_label":"Egzamin zawodowy","text_html":"<p>Zadanie 5.<br>Podstawowym składnikiem biogazu jest<br>A. etan.<br>B.<br>butan.<br>C.<br>metan.<br>D. propan.</p>","answer_text_html":"<p>C<br>25<br>C</p>","solutions":[]}