thi hk2 hoa 9

<span class='text_page_counter'>(1)</span>TRUNG TÂM GDTX ♣♣♣۩♣♣♣. KIỂM TRA HK 2 - MÔN HÓA KHỐI 9 NĂM HỌC 2011-2012 Thời gian làm bài : 45 phút. ĐIỂM Họ và tên : ……………………………………………… Lớp ……. Đề: Câu 1: (1,5đ) Viết CTCT của các chất sau: C2H2, C2H5OH, CH3COONa Câu 2: ( 2đ) Hãy nhận biết các chất sau bằng phương pháp hóa học, viết các phương trình hóa học xảy ra nếu có : CO2, CH4, C2H4 Câu 3: (2,5đ) Hoàn thành sơ đồ phản ứng sau: (1). (2) (3) (4) C2H5OH   CH3COOH   CH3COOC2H5   CH3COONa. (5). C2H4. C2H5ONa. Câu 4.( 2đ ) Cho 5,6 lít hỗn hợp khí gồm metan và axetilen qua bình đựng dung dịch nước brom dư, sau phản ứng thấy thoát ra 2,24 lít khí. a) Viết phương trình phản ứng xảy ra? b) Tính % thể tích các khí trong hỗn hợp? Các khí đo ở đktc. Câu 5.( 2đ )Đốt cháy hoàn toàn một lượng axit axetic trong không khí, thu được 2,24 lít khí CO 2. a) Khối lượng axit đã cháy. b) Theå tích khoâng khí caàn duøng (bieát oxi chieám 20% theå tích khoâng khí, theå tích caùc chaát khí đều đo ở đktc) c) Nếu dùng lượng axit ở trên tác dụng với 150 ml dung dịch NaOH 1M ( d = 1,12 g/ml). Tính C % của các chất tan có trong dung dịch sau phản ứng? Cho C = 12, Na = 23, Zn = 65, O = 16, H = 1. BÀI LÀM ............................................................................................................................................................

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TRUNG TÂM GDTX. KIỂM TRA HK 2 - MÔN HÓA KHỐI 9.

<span class='text_page_counter'>(3)</span> ♣♣♣۩♣♣♣. NĂM HỌC 2011-2012 Thời gian làm bài : 45 phút. ĐIỂM Họ và tên : ……………………………………………… Lớp ……. Đề: Câu 1: (1,5đ) Viết CTCT của các chất sau: C6H6, C2H5Cl, C3H6 Câu 2: ( 2đ) Hãy nhận biết các chất sau bằng phương pháp hóa học, viết các phương trình hóa học xảy ra nếu có : các dung dịch: axit axetic, rượu etylic, glucozo. Câu 3: (2,5đ) Hoàn thành sơ đồ phản ứng sau: (5). CH3COOH. (1). CO2. (2). Na2CO3. (3). CO2. (4). CaCO3. (CH3COO)2 Zn. Câu 4.( 2đ ) Cho 6,72 lít hỗn hợp khí gồm metan và etilen qua bình đựng dung dịch nước brom dư, sau phản ứng thấy thoát ra 2,24 lít khí. a) Viết phương trình phản ứng xảy ra? b) Tính % thể tích các khí trong hỗn hợp? Các khí đo ở đktc. Câu 5.( 2đ )Đốt cháy hoàn toàn một lượng axit axetic trong không khí, thu được 1,8 gam nước. a) Khối lượng axit đã cháy. b) Theå tích khoâng khí caàn duøng (bieát oxi chieám 20% theå tích khoâng khí, theå tích caùc chaát khí đều đo ở đktc) c) Cho lượng axit ở trên tác dụng với 150 ml dung dịch NaOH 1M ( d = 1,12 g/ml). Tính C% của các chất tan có trong dung dịch sau phản ứng? Cho C = 12, Na = 23, Zn = 65, O = 16, H = 1. BÀI LÀM ............................................................................................................................................................

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